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all resistance in parallel will have same?
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Aug 14, 2017
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anonymous
all resistance in parallel will have same?
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Jan 21, 2018
by
NITIN P. DESHMUKH
Voltage drop
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asked
Aug 14, 2017
by
anonymous
all resistance in series will have same?
all resistance in series will have same?
Last answer:
All resistance have same current when they connected in series
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Jan 19
by
anonymous
A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? (1) Circular plate (2) Cube (3) Sphere (4) All will cool at the same rate
A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? (1) Circular plate (2) Cube (3) Sphere (4) All will cool at the same rate
Last answer:
Sphere
physics
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Jan 12
by
anonymous
A task is done by 46 persons not all of them have the same capacity to task. Every day exactly 2 persons, do the task with no pair of persons working together twice. Even after all possible pairs have worked once, all the persons together works for two more days to finish the task. Find the number of days in which all the persons together will finish the whole task? a) 44 b) 45 c) 46 d) 47
A task is done by 46 persons not all of them have the same capacity to task. Every day exactly 2 persons, do the task with no pair of persons working together twice. Even after all possible pairs have worked once, all the persons together works for two more days to finish the task. Find the number of days in which all the persons together will finish the whole task? a) 44 b) 45 c) 46 d) 47
Last answer:
D 46 persons task in pairs, with no same pair of persons working together. Each person will be working with other 45 which means each persons will work for 45 days in pair. Let the time taken by each ... +1/T46)= 1/47 If all the persons work together they will finish the whole task in 47 days.
time-and-work
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asked
Dec 11, 2017
by
anonymous
Do capacitors in parallel have the same voltage?
Do capacitors in parallel have the same voltage?
Last answer:
Not same but we will get addition of both values when capacitors are connected in parallel...
capacitor
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asked
Jan 10
by
anonymous
A and B are two trains 150m and 100m long are running on parallel rails at the rate of 30 kmph and 40 kmph respectively.In how much time will they cross each other if they are running in the same direction. A) 80 sec B) 90sec C) 105sec D) 45sec
A and B are two trains 150m and 100m long are running on parallel rails at the rate of 30 kmph and 40 kmph respectively.In how much time will they cross each other if they are running in the same direction. A) 80 sec B) 90sec C) 105sec D) 45sec
Last answer:
ANSWER: B Explanation: Length of first train=150m Length of second train=100m Speed of first train =30kmph Speed of second train =40kmph If the direction is given in the same direction then we subtract ... +100)m =250m Time = distance/speed Time taken =(250*9/25)sec =90 sec.
problems-on-train
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Jan 10
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anonymous
X and y are two trains of length 500m and 400m run on parallel lines. When they run in the same direction it will take 60 sec to cross each other. When they run in opposite direction, it will take 20 sec to cross each other. Find the speed of 2 trains (in km/hr) A) 116 and 42 km/hr B) 54 and 78km/hr C) 104 and 60km/hr D) 108 and 54km/hr
X and y are two trains of length 500m and 400m run on parallel lines. When they run in the same direction it will take 60 sec to cross each other. When they run in opposite direction, it will take 20 sec to cross each other. Find the speed of 2 trains (in km/hr) A) 116 and 42 km/hr B) 54 and 78km/hr C) 104 and 60km/hr D) 108 and 54km/hr
Last answer:
ANSWER : D Explanation: Let the speed of 2 trains be a1 and a2 Total distance covered to cross each other = (500 + 400)m = 900m When they run in the same direction, Relative speed = a1 - a2 = 900 /60 ... hr a 2= (15 * 18 / 5)m/s = 54km/hr Speed of two trains are 108 and 54 km/hr
problems-on-train
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Jan 10
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anonymous
Let p and q be two trains 65m and 70m long are running on parallel tracks in the same direction with a speed of 34km/hr and 25 km/hr. how long will it take to clear off each other from the moment they met? A) 54sec B) 56sec C) 45sec D) None of these
Let p and q be two trains 65m and 70m long are running on parallel tracks in the same direction with a speed of 34km/hr and 25 km/hr. how long will it take to clear off each other from the moment they met? A) 54sec B) 56sec C) 45sec D) None of these
Last answer:
ANSWER : A Explanation : Speed of the train p = 34km/hr Speed of the train q = 25 km/hr If the direction is given in the same direction then we subtract So relative speed of trains = (34 - 25)km/hr = 9 km ... 65 + 70)m = 135m Therefore time = (135 / (5/2))sec = 270/5 sec =54 sec.
problems-on-train
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Jan 12
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anonymous
A bakery P can sold 500 breads in 4 hours, bakery Q can sold the same number of bread in 5 hrs while bakery R can sold them in 6 hrs. All the bakeries are opened at 8 a.m while bakery P is closed at 9 p.m and the remaining 2 bakeries complete their target. Approximately at what time will the work be finished? a) 10 b) 8 c) 12 d) 6
A bakery P can sold 500 breads in 4 hours, bakery Q can sold the same number of bread in 5 hrs while bakery R can sold them in 6 hrs. All the bakeries are opened at 8 a.m while bakery P is closed at 9 p.m and the remaining 2 bakeries complete their target. Approximately at what time will the work be finished? a) 10 b) 8 c) 12 d) 6
Last answer:
A (P+Q+R)'s 1 hour work = (1/4 +1/5+ 1/6) =(15+12+10)/60 =37/60 Remaining work = 1- 37/60 = 23/60 (Q+R)'s 1 hour work = (1/5 +1/6) =11/30 Now 11/30 work is done by Q and R ... R in(30/11*23/60) =23/22 hrs = 1hr So the work will be finished approximately 1 hr after 9.am i.e., around 10 a.m
time-and-work
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asked
Aug 2, 2020
by
anonymous
If all the lines in the image below are of the same length but of different thickness and are drawn in perspective with respect to their distance from the viewer, which of the following statements will be TRUE?
Last answer:
A D
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5 days
ago
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anonymous
A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be
A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be
Last answer:
R/n2
physics
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3 days
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anonymous
All isotopes of the same element have ______ (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass
All isotopes of the same element have ______ (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass
Last answer:
the same atomic number but different atomic masses
chemistry
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asked
Apr 11, 2018
by
anonymous
The effective resistance of a conductor will be the same as ohmic resistance when : -
The effective resistance of a conductor will be the same as ohmic resistance when : - a) current is in true sine wave form b) voltage is low c) power factor is unity d) current is uniformly distributed in the conductor cross-section
Last answer:
The effective resistance of a conductor will be the same as ohmic resistance when : - current is uniformly distributed in the conductor cross-section
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4 days
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anonymous
If an electron and a photon have the same wavelength, then they will have the same (1) velocity (2) linear momentum (3) angular momentum (4) energy
If an electron and a photon have the same wavelength, then they will have the same (1) velocity (2) linear momentum (3) angular momentum (4) energy
Last answer:
linear momentum
physics
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Mar 25, 2018
by
anonymous
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as?
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as?
Last answer:
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 2 : 5.
bulbs
resistance
ratio
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Aug 25, 2019
by
anonymous
State the four methods of laying of cable. State precautions while laying of underground cable in the situation : (i) Minimum clearance between cable and water pipe line when running in parallel. (ii) Minimum clearance between cable and water pipe line when running in parallel. (iii) If cable is laid through pipe what should be diameter of pipe. (iv) When more than one cable is to be laid in the same trench, what should be minimum spacing between two cables ?
State the four methods of laying of cable. State precautions while laying of underground cable in the situation : (i) Minimum clearance between cable and water pipe line when running in parallel. (ii) Minimum clearance between cable and water pipe line when running in parallel. (iii) If cable is laid through pipe what should be diameter of pipe. (iv) When more than one cable is to be laid in the same trench, what should be minimum spacing between two cables ?
Last answer:
(i) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr. (ii) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr ... should be minimum spacing between two cables :- Then minimum 30 cm spacing is provided between 2 cables
laying
cable
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asked
Jun 4, 2018
by
anonymous
Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic
Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic field along a line running parallel to the conductors and midway between them is (A) zero (B) proportional to I (C) proportional to d (D) proportional to the permeability of the medium.
Last answer:
The magnetic field along the conductor at the midway point is zero because equal magnitide of field are produced in each conductor therefore the resultant magnetic field at the midway is zero.
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1
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asked
Apr 25, 2018
by
anonymous
Two transformers having the same p.u. impedance connected in parallel share the connected load
Two transformers having the same p.u. impedance connected in parallel share the connected load (A) equally (B) in proportion to the respective ratings (C) in proportion to the voltage ratio (D) in proportion to the zero phase displacement
Last answer:
Two transformers having the same p.u. impedance connected in parallel share the connected load in proportion to the respective ratings
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81
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1
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Jan 24, 2020
by
anonymous
what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel
what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel
Last answer:
equivalent resistance
equivalent
resistance
resistors
series
parallel
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108
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2
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asked
Feb 17, 2019
by
Zak
How to calculate total resistance in parallel circuit
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174
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asked
May 15, 2018
by
anonymous
When two 100 kΩ resistors are connected in parallel, net resistance is
When two 100 kΩ resistors are connected in parallel, net resistance is
Last answer:
When two 100 kΩ resistors are connected in parallel, net resistance is 50 kΩ
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asked
Apr 25, 2018
by
anonymous
A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V,
A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum when the supply frequency is 1 kHz. The approximate values of Q-factor and bandwidth are, respectively (A) 40, 400 Hz (B) 10, 100 Hz (C) 20, 50 Hz (D) 50, 20 Hz
Last answer:
A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum ... supply frequency is 1 kHz. The approximate values of Q-factor and bandwidth are, respectively 20, 50 Hz
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1
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asked
Apr 5, 2018
by
anonymous
A parallel combination of capacitance C and resistance R is connected in series with inductance L and small...
A parallel combination of capacitance C and resistance R is connected in series with inductance L and small resistance r. Under what condition will the circuit be non-reactive? (A) C=LR (B) C=LR2 (C) C=L/R2 (D) C=L/R
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asked
Apr 5, 2018
by
anonymous
What is the equivalent resistance of a network having 5 resistors of each 10ohm connected in parallel?
What is the equivalent resistance of a network having 5 resistors of each 10ohm connected in parallel? (A) 10 Ohms (B) 50 Ohms (C) 500 Ohms (D) 2 Ohms
Last answer:
D) 2 ohms Solution: 1/Rt = (1/R)(n) 1/Rt = (1/10) (5) 1/Rt = 5/10 Rt = 2 ohms
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asked
Apr 5, 2018
by
anonymous
When ‘n’ resistances each of value ‘r’ are connected in parallel, then the resultant resistance is ‘x’...
When ‘n’ resistances each of value ‘r’ are connected in parallel, then the resultant resistance is ‘x’. When these ‘n’ resistances are connected in series, total resistance is (A) n2X (B) X/n (C) n2/X (D) nX2
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91
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asked
Mar 31, 2018
by
anonymous
If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent resistance is _________.
Last answer:
If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent resistance is 5 Ω.
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asked
Mar 25, 2018
by
anonymous
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel...
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?
Last answer:
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms, both resistance and inductance carry equal currents.
ac
voltage
pure
resistance
ohms
parallel
inductance
impedance
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asked
Aug 14, 2017
by
anonymous
if the resistance is connected in parallel the total resistance decreases why?
if the resistance is connected in parallel the total resistance decreases why?
Last answer:
Because if the resistances are connected in parallel it provide a conducting path for current to flow. So more the current paths less the resistance
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asked
May 8, 2018
by
anonymous
A 17 inch personal computer uses approximately 150 watts in an hour. If you have same
A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption? (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above
Last answer:
A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption? (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above
personal
computer
uses
watts
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1
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asked
Apr 12, 2018
by
anonymous
If a cell connection is reversed in parallel group, what will happen?
If a cell connection is reversed in parallel group, what will happen? A. Open circuit B. All cells will be equally charged C. short circuit D. Nothing will happen
Last answer:
If a cell connection is reversed in parallel group, what will happen? Open circuit
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1
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asked
Apr 12, 2018
by
anonymous
Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will ...
Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will be: A. Glow dimmer B. Glow brighter C. Not light D. Glow with the same brightness as before
Last answer:
Glow with the same brightness as before
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2
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Mar 31, 2018
by
anonymous
Three elements having conductance G1 , G2 and G3 are connected in parallel. Their combined conductance will be
Last answer:
Three elements having conductance G1 , G2 and G3 are connected in parallel. Their combined conductance will be G1 + G2 +G3
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533
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1
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Mar 25, 2018
by
anonymous
A parallel AC. circuit in resonance will?
A parallel AC. circuit in resonance will?
Last answer:
A parallel AC. circuit in resonance will have a high impedance.
parallel
ac
circuit
resonance
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Dec 11, 2017
by
anonymous
what will be the capacitance if three capacitors connected in parallel each having value of 0.5 micro Farad ?
what will be the capacitance if three capacitors connected in parallel each having value of 0.5 micro Farad ?
Last answer:
the total capacitace when connected in parallel Tc=total capacitor c1=c2=c3=0.5uf Tc=c1+c2+c3 Tc=1.5uf
problem
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3
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Sep 18, 2017
by
anonymous
What will happen when capacitors are connected in parallel?
Last answer:
The capacity of capacitor is added and it becomes multiple of no of capacitors capacity
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59
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Mar 31, 2018
by
anonymous
Two coils connected in series have resistance of 600 ohm and 300 ohm ...
Two coils connected in series have resistance of 600 ohm and 300 ohm and temperature coefficients of 0.1% and 0.4% respectively.The resistance of the combination at 50oC will be
Last answer:
Two coils connected in series have resistance of 600 ohm and 300 ohm and temperature coefficients of 0.1% and 0.4% respectively.The resistance of the combination at 50oC will be 990 ohm
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Mar 28, 2018
by
anonymous
The internal resistance of the voltmeter must be very high in order to have
Last answer:
The internal resistance of the voltmeter must be very high in order to have Minimum current through the meter.
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1
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5 days
ago
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anonymous
An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction
An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction
Last answer:
as a parallel beam in one direction
physics
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Aug 1, 2020
by
anonymous
The figure shows the front view of a convex lens, which originally had only one edge. Five holes of different shapes, namely triangle, square, pentagon, hexagon and circle, were drilled through it at points P, Q, R, S and T in such a way that the holes were parallel to each other, perpendicular to the edge and all the holes were still within the lens edge. What is the total number of edges in the lens after the holes were drilled?
Last answer:
57
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Jan 10
by
anonymous
Two passenger trains are running in the same direction on parallel tracks at 210km/hr and 150km/hr respectively. The faster train passes a man 81 sec faster than the slower train. Find the length of the faster train. A) 1250m B) 1150m C) 1350m D) 1450m
Two passenger trains are running in the same direction on parallel tracks at 210km/hr and 150km/hr respectively. The faster train passes a man 81 sec faster than the slower train. Find the length of the faster train. A) 1250m B) 1150m C) 1350m D) 1450m
Last answer:
ANSWER: C Explanation: Speed of 1st train = 210km/hr Speed of 2nd train = 150km/hr Here the two passenger trains are running in same direction, so Relative speed = (210 - 150)km/hr = 60km ... faster train = relative speed * time taken by train to pass = 50/3 * 81 = 1350m
problems-on-train
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Mar 25, 2018
by
anonymous
In a series parallel circuit, any two resistances in the same current path must be in?
In a series parallel circuit, any two resistances in the same current path must be in?
Last answer:
In a series parallel circuit, any two resistances in the same current path must be in series with each other.
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Apr 1, 2018
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anonymous
“In all cases of electromagnetic induction, an induced voltage will cause a current to flow in a closed ...
“In all cases of electromagnetic induction, an induced voltage will cause a current to flow in a closed circuit in such a direction that the magnetic field which is caused by that current will oppose the change that produces the current” is the original statement of
Last answer:
“In all cases of electromagnetic induction, an induced voltage will cause a current to flow in a closed circuit in such a direction that the magnetic field which is caused by that current will oppose the change that produces the current” is the original statement of Lenz’s law.
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Apr 5, 2018
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anonymous
In case of four pole, lap wound machine if the air gap under each pole is the same, then what will be the...
In case of four pole, lap wound machine if the air gap under each pole is the same, then what will be the result? (A) There will be reduced eddy currents (B) There will be reduced hysteresis loss (C) Current in each path will not be the same (D) It will result in higher terminal voltage
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May 30, 2019
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anonymous
Parallel Reactance and Resistance Example 1
Parallel Reactance and Resistance Example 1
Last answer:
Parallel Reactance and Resistance Example 1
parallel
reactance
and
resistance
example
1
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Apr 25, 2018
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anonymous
Consider the following statements : If a high Q parallel resonant circuit is loaded with a resistance ...
Consider the following statements : If a high Q parallel resonant circuit is loaded with a resistance 1. The circuit impedance reduces. 2. The resonant frequency remains the same. 3. The bandwidth reduces. Which of the above statements is/are correct ?
Last answer:
Consider the following statements : If a high Q parallel resonant circuit is loaded with a resistance 1. The circuit impedance reduces. 2. The resonant frequency remains the same. 3. The bandwidth reduces. Which of the above statements is/are correct ? 3 only
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Apr 12, 2018
by
anonymous
When an additional resistor is connected across an existing parallel circuit, the total resistance:
When an additional resistor is connected across an existing parallel circuit, the total resistance: A. remains the same B. decreases by the value of the added resistor C. increases by the value of the added resistor D. decreases
Last answer:
When an additional resistor is connected across an existing parallel circuit, the total resistance: decreases
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May 13, 2018
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anonymous
Distribution transformers have good all day efficiency due to
Distribution transformers have good all day efficiency due to (A) low copper loss (B) low iron loss (C) low copper and iron loss (D) None of these
Last answer:
Distribution transformers have good all day efficiency due to low iron loss
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Apr 9, 2018
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anonymous
A digital board has a unipolar square clock of 250MHz. Ifthe clock on the board at all places should have all...
A digital board has a unipolar square clock of 250MHz. If the clock on the board at all places should have all the harmonic components which have more than 10 % of DC value, the board has to be designed for at least — A) 250MHz B) 750MHz C) 1250 MHz D) 2500 MHz
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Mar 24, 2018
by
anonymous
Two waves of the same frequency have opposite phase when the phase angle between them is?
Two waves of the same frequency have opposite phase when the phase angle between them is?
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Two waves of the same frequency have opposite phase when the phase angle between them is 180°.
waves
frequency
opposite
phase
angle
between
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Apr 25, 2018
by
anonymous
A permanent magnet stepper motor with 8 poles in stator and 6 poles in rotor will have a step angle of
A permanent magnet stepper motor with 8 poles in stator and 6 poles in rotor will have a step angle of (a) 7.5° (b) 15° (c) 30° (d) 60°
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d
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4 days
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anonymous
“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of — (1) Hund’s (2) Exclusion Principle of Pauli (3) Uncertainty Principle of Hiesenberg (4) Avogadro’s Law
“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of — (1) Hund’s (2) Exclusion Principle of Pauli (3) Uncertainty Principle of Hiesenberg (4) Avogadro’s Law
Last answer:
Exclusion Principle of Pauli
chemistry
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