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which voltage is more dangerous?
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asked
Aug 23, 2017
by
anonymous
which voltage is more dangerous?
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answered
Dec 6, 2017
by
jihadio k jeeja
DC voltage, as it is constantly egfecting.but Ac has peak but also decreases
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asked
Aug 28, 2019
by
anonymous
Which is more dangerous AC or DC and why ?
Which is more dangerous AC or DC and why ?
Last answer:
Dc is more dangerous than Ac because in Ac the voltage will varies but in dc the constant voltage
dangerous
ac
dc
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2
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asked
6 days
ago
by
anonymous
It is dangerous to observe Solar eclipse with naked eyes because (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse
It is dangerous to observe Solar eclipse with naked eyes because (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse
Last answer:
Ultraviolet radiations from Sun burn our retina
physics
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asked
Aug 15, 2017
by
anonymous
which is dangerous AC or DC ?
which is dangerous AC or DC ?
Last answer:
DC is more dangerous than AC. Because there is lowering of voltage and current in AC but in DC it is continuous or pulsating which is dangerous than AC.
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asked
Mar 31, 2018
by
anonymous
Transmitting power at high voltage requires more __________.
Last answer:
Transmitting power at high voltage requires more maintenance and protection of the equipment, faster controls for minimising the arcing of contacts, larger controls for minimising the arcing of contacts.
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asked
Sep 30, 2017
by
anonymous
does the high voltage side of Transformer winding have more number of turns?
Last answer:
yes High Voltage side of Transformer winding have more number of turns. and low voltage side of Transformer winding have less number of turns.
transformer
high
voltage
turns
winding
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asked
Mar 20, 2018
by
anonymous
Insulation resistance of high voltage circuit breakers is more than?
Last answer:
Insulation resistance of high voltage circuit breakers is more than 100 mega ohms.
insulation
resistance
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506
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1
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asked
Mar 19, 2018
by
anonymous
If a transformer is switched on to a voltage more than the rated voltage?
If a transformer is switched on to a voltage more than the rated voltage?
Last answer:
If a transformer is switched on to a voltage more than the rated voltage its power factor will deteriorate.
transformer
switched
voltage
rated
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70
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asked
Jul 2, 2019
by
anonymous
Which is more temperature stable, a carbon-composition or a metal-film resistor?
Which is more temperature stable, a carbon-composition or a metal-film resistor?
which
is
more
temperature
stable
a
carbon-composition
or
metal-film
resistor
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asked
Apr 10, 2018
by
anonymous
Which distribution system is more reliable ?
Which distribution system is more reliable ? (a) Ring main system (b) Tree system (c) Radial system (d) All are equally reliable.
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asked
Apr 10, 2018
by
anonymous
Which of the following test is carried out to ensure the sufficient strength of insulation between two or more...
Which of the following test is carried out to ensure the sufficient strength of insulation between two or more conductors to avoid leakage between them ? (a) Testing of insulation resistance between wiring and earth (b) Testing of insulation resistance between conductors (c) Testing of polarity of single phase switch (d) Testing of earth continuity path
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asked
Apr 10, 2018
by
anonymous
Which portion of the transmission system is more prone to faults ?
Which portion of the transmission system is more prone to faults ? (a) Alternator (b) Transformer (c) Overhead lines (d) Underground cables
Last answer:
C
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2
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asked
Jul 1, 2019
by
anonymous
Which have more free electrons: conductors or insulators?
Which have more free electrons: conductors or insulators?
Last answer:
Conductors have many free electrons whereas insulators have very few or none at all.
which
have
more
free
electrons
conductors
or
insulators
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1
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asked
4 days
ago
by
anonymous
The animal which can tolerate more summer heat is (1) Buffalo (2) Cow (3) Goat (4) Donkey
The animal which can tolerate more summer heat is (1) Buffalo (2) Cow (3) Goat (4) Donkey
Last answer:
Goat
biology
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asked
4 days
ago
by
anonymous
Which of the following statements is true ? (1) Dehusked cereals and pulses are more nutritious (2) Whole grain cereals and pulses are more nutritious (3) Processed cereal products are nutrient dense (4) Breakfast cereals are nutrient dense
Which of the following statements is true ? (1) Dehusked cereals and pulses are more nutritious (2) Whole grain cereals and pulses are more nutritious (3) Processed cereal products are nutrient dense (4) Breakfast cereals are nutrient dense
Last answer:
Whole grain cereals and pulses are more nutritious
biology
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asked
6 days
ago
by
anonymous
Which of the following criterion is used for any metal to be used as a cooking material ? (1) More specific heat (2) More thermal conductivity (3) Less thermal conductivity (4) Less electrical conductivity
Which of the following criterion is used for any metal to be used as a cooking material ? (1) More specific heat (2) More thermal conductivity (3) Less thermal conductivity (4) Less electrical conductivity
Last answer:
Less thermal conductivity
physics
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asked
6 days
ago
by
anonymous
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is (1) zero (2) one (3) less than one (4) more than one
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is (1) zero (2) one (3) less than one (4) more than one
Last answer:
zero
physics
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asked
Jan 15
by
anonymous
Which is a tropical food crop requiring a temperature of 27 degree C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley
Which is a tropical food crop requiring a temperature of 270 C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley
Last answer:
Rice
physical-geography
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asked
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
Jan 10
by
anonymous
M and N invested in a work which M invest Rs 3015 more than N. N invested for 7 months while M invested for 5 months. If M gets Rs 425 more than N, out of a total profit of Rs 3400. Then the amount invested in the business by M approximately is, A) 6784 B) 6258 C) 7524 D) 7275
M and N invested in a work which M invest Rs 3015 more than N. N invested for 7 months while M invested for 5 months. If M gets Rs 425 more than N, out of a total profit of Rs 3400. Then the amount invested in the business by M approximately is, A) 6784 B) 6258 C) 7524 D) 7275
Last answer:
Answer: A) Let investment of N be x Profit of N be y Investment of M is x+3015 Profit ratio of M&N is, M:N =[x+3015]*5:x*7-------->(1) Profit of M =425 +profit of N Total profit =3400 =425 ... ---->(2) 153/119=(x+3015)*5/x*7 X=Rs.3769 M's investment =x+3015 =3769+3015 =Rs6784
partnership
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asked
Jan 10
by
anonymous
M and N invested in a business in which M invests Rs.385 more than N. N invested for 9months while M invested for 5months. If M get Rs.65 more than N out of profit of Rs.1350. Then then total amount invested in the business approximately is, A) 1452 B) 7413 C) 6298 D) 5778
M and N invested in a business in which M invests Rs.385 more than N. N invested for 9months while M invested for 5months. If M get Rs.65 more than N out of profit of Rs.1350. Then then total amount invested in the business approximately is, A) 1452 B) 7413 C) 6298 D) 5778
Last answer:
Answer: B) Let investment of M is X + 385 Let investment of N is X Profit earned of M&N is, M/N=(X+385)*5 /x *9-------> (1) Profit of M =65 +profit of N Total profit = 1350=65 + ... =(x + 385) *5/(x*9) X =392.01 Total investment =(392+385)*5+(392*9) =Rs.7413
partnership
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asked
Jan 10
by
anonymous
Rita bought a computer with a discount of 10% on its marked price. she sold it at a price 25% more than the price at which she bought it. The new SP is how much percentage more than marked price?
Rita bought a computer with a discount of 10% on its marked price. she sold it at a price 25% more than the price at which she bought it. The new SP is how much percentage more than marked price?
Last answer:
Mp=Rs x Sp=Rs 90/100*x=9x/10 Sp=9x/10*125/100=9x/8 Required %= (9x/8-x)/x *100 = 12.5%
profit-and-loss
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15
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1
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asked
Jan 10
by
anonymous
Bharani sells a novel at a gain of 40%. if he had bought it at 20% less and sold it for Rs. 70 more which equals to 350% of CP. The CP of the novel is
Bharani sells a novel at a gain of 40%. if he had bought it at 20% less and sold it for Rs. 70 more which equals to 350% of CP. The CP of the novel is
Last answer:
Let CP= x SP= 140x/100 = 14x/10 CP= 80% 0f x= 8x/10 then, SP =14x/10+70 14x/10 + 70= 350%of 8x/10 14x/10+70=350/100*8x/10=28x/10 70=28x/10-14x/10 70=14x/10 X=700/14 X=50
profit-and-loss
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1
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asked
May 25, 2020
by
anonymous
Name the metal oxide film which is more protective. Explain.
Name the metal oxide film which is more protective. Explain.
Last answer:
Stable -non - porous oxide film. Explanation: Metals like Al forms Al2O3 whose volume is greater than the volume of metal (Al). An extremely tightly adhering, non- porous oxide layers is ... it forms a barrier for further action and hence the rate of oxidation of metal rapidly decreases.
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asked
May 14, 2018
by
cv999
Which is more complicated
Which is more complicated analog or digital electronics
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29
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asked
May 12, 2018
by
anonymous
Which relay is more sensitive ? 1 VA or 2 VA ?
Which relay is more sensitive ? 1 VA or 2 VA ? (A) 1 VA (B) 2 VA (C) Both are equally sensitive (D) Both are insensitive
Last answer:
Which relay is more sensitive ? 1 VA or 2 VA ? (A) 1 VA (B) 2 VA (C) Both are equally sensitive (D) Both are insensitive
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1
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asked
Apr 10, 2018
by
anonymous
Which of the following is a group of one or more attributes that uniquely identifies a row?
Which of the following is a group of one or more attributes that uniquely identifies a row? (1) Key (2) Tuple (3) Determinant (4) Relation
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asked
Apr 9, 2018
by
anonymous
The noise is more dominant in which of the following:
The noise is more dominant in which of the following: (1) PAM (2) PWM (3) PPM (4) FSK
Last answer:
The noise is more dominant in PAM.
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81
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1
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asked
Mar 25, 2018
by
anonymous
A network which contains one or more than one source of e.m.f. is known as?
A network which contains one or more than one source of e.m.f. is known as?
Last answer:
Active
network
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2
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asked
Sep 13, 2017
by
anonymous
which rectifier is more efficient?
Last answer:
the efficiency of centre tapped full wave rectifier and bridge rectifier is same that is 80.2% but the because of the use of Central trap the Transformer utilisation factor It's become low.hence we can say the bridge rectifier is more efficient
rectifier
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1
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asked
Aug 5, 2019
by
A supply of 24 V DC is applied across a
A supply of 24 V DC is applied across a circuit which consist of three resistors connected in parallel R1= 1.2KΩ, R2= 560 Ω, R3= 2.1Ω and a fourth resistor of 7.8 Ω connected in series with the parallel group. Determine the current, voltage and power across each resistor
Last answer:
Req= (1/1200 +1/560 + 1/2.1)^-1 = 2.1 ohms RT= 2.1 + 7.8 = 9.9 ohms IT = V/R = 24/9.9 = 2.4 A Veq= R I = 2.1 2 ... 7.8 = 12.096 w = 44.928 w _________________________________________ By: Ellis-Junior Kamatjipose ellisjuniork90@gmail.com
circuit
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asked
Jun 17, 2018
by
anonymous
Which among the given statement is/are CORRECT. (a) Avalanche breakdown voltage increases with
Which among the given statement is/are CORRECT. (a) Avalanche breakdown voltage increases with temperature (b) Zener breakdown voltage decreases with temperature A) Only (a) B) Only (b) C) Both (a) & (b) D) None of (a) & (b)
Last answer:
Which among the given statement is/are CORRECT. (a) Avalanche breakdown voltage increases with temperature (b) Zener breakdown voltage decreases with temperature A) Only (a) B) Only (b) C) Both (a) & (b) D) None of (a) & (b)
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104
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1
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asked
May 8, 2018
by
anonymous
Which of the following is the least expensive protection for over current in low voltage system?
Which of the following is the least expensive protection for over current in low voltage system? (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker
Last answer:
Which of the following is the least expensive protection for over current in low voltage system? (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker
over
current
low
voltage
system
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166
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1
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asked
Apr 29, 2018
by
anonymous
In which of the following waveforms is RMS voltage equal to the average voltage?
In which of the following waveforms is RMS voltage equal to the average voltage? A) Triangle wave B) Square wave C) Sine wave D) None of these
Last answer:
In which of the following waveforms is RMS voltage equal to the average voltage? A) Triangle wave B) Square wave C) Sine wave D) None of these
waveforms
rms
voltage
average
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57
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1
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asked
Apr 25, 2018
by
anonymous
A three phase induction motor is driving full -load torque which is independent of speed. If the line voltage...
A three phase induction motor is driving full -load torque which is independent of speed. If the line voltage drops to 90% of the rated value, % increase in motor copper losses (a) 23% (b) -18% (c) 123% (d) None of these
Last answer:
A three phase induction motor is driving full -load torque which is independent of speed. If the line voltage drops to 90% of the rated value, % increase in motor copper losses (a) 23% (b) -18% (c) 123% (d) None of these
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134
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1
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asked
Apr 12, 2018
by
anonymous
Which one is not an AC voltage stabilizer?
Which one is not an AC voltage stabilizer? A. Stepped B. servo C. dynamos D. constant voltage transformer
Last answer:
dynamos is not an AC voltage stabilizer
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1
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asked
Apr 11, 2018
by
anonymous
Which of the following is usually not the generating voltage : -
Which of the following is usually not the generating voltage : - a) 6.6 EV b) 11 KV c) 12.5 KV d) 13.2 KV
Last answer:
Which of the following is usually not the generating voltage : - 12.5 KV
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118
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1
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asked
Mar 25, 2018
by
anonymous
The time constant of the capacitance circuit is defined as the time during which voltage?
The time constant of the capacitance circuit is defined as the time during which voltage?
Last answer:
The time constant of the capacitance circuit is defined as the time during which voltage rises to 63.2% of its final steady value.
time
constant
capacitance
circuit
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91
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1
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asked
Oct 30, 2017
by
Niloy
Which is the reason to electrical shock voltage/current?
Electrical shock happens for voltage/current?
Last answer:
The severity ofelectric shockdepends on thecurrentflowing through the body, which is a function of the electromotive force (E) involts, and the contact resistance (R) in ohms.
voltage
current
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asked
Sep 27, 2017
by
anonymous
in short circuit test of transformer which side is low voltage side and which side is high voltage side?
Last answer:
Primary is high voltage side and Secondary is low Voltage side.
transformer
circuit
test
short
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99
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asked
Sep 27, 2017
by
anonymous
in open circuit or no load test of transformer which side is low voltage side and which side is high voltage side?
Last answer:
Primary side is low voltage side and secondary side is high voltage side.
open
circuit
test
transformer
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asked
6 days
ago
by
anonymous
Which one of the following reflects back more sunlight as compared to other three? (1) Sand desert (2) Land covered with fresh snow (3) Prairie land (4) Paddy crop land
Which one of the following reflects back more sunlight as compared to other three? (1) Sand desert (2) Land covered with fresh snow (3) Prairie land (4) Paddy crop land
Last answer:
Land covered with fresh snow
physics
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asked
Jan 20
by
anonymous
Which of the following has got more heat capacity ? (1) Iron piece (2) Water (3) Gold piece(4) Benzene
Which of the following has got more heat capacity ? (1) Iron piece (2) Water (3) Gold piece(4) Benzene
Last answer:
Water
physics
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asked
Jan 20
by
anonymous
Which of the following produces more severe burns ? (1) Boiling water (2) Hot water (3) Steam (4) Melting iceberg
Which of the following produces more severe burns ? (1) Boiling water (2) Hot water (3) Steam (4) Melting iceberg
Last answer:
Steam
physics
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asked
Jan 18
by
anonymous
Which of the following occurs when labour productivity rises ? (1) The equilibrium nominal wage falls. (2) The equilibrium quantity of labour falls. (3) Competitive firms will be induced to use more capital (4) The labour demand curve shifts to the right
Which of the following occurs when labour productivity rises ? (1) The equilibrium nominal wage falls. (2) The equilibrium quantity of labour falls. (3) Competitive firms will be induced to use more capital (4) The labour demand curve shifts to the right
Last answer:
The labour demand curve shifts to the right
economics
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asked
Jan 10
by
anonymous
The market price of a novel was 50% more than its cost price. Vadi was going to sell it at market price to a customer, but he showed vadi some defects in the novel, due to which vadi gave him a discount of 33%.Next day he came again and showed vadi some more defects, hence he gave him another discount that was equal to 14.5% of the cost price. What was the approximate profit/loss to vadi?
The market price of a novel was 50% more than its cost price. Vadi was going to sell it at market price to a customer, but he showed vadi some defects in the novel, due to which vadi gave him a discount of 33%.Next day he came again and showed vadi some more defects, hence he gave him another discount that was equal to 14.5% of the cost price. What was the approximate profit/loss to vadi?
Last answer:
Let the cost price be Rs. 100 Then, market price is Rs. 150 Now, the first discount is of 33% Rs.150 =Rs. 50 Hence, its selling price = 150 - 50 = Rs. 100 since vadi's ... further discount will be equal to loss % The next discount of 14.5% will be the loss percentage to vadi
profit-and-loss
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asked
May 26, 2018
by
anonymous
Which alternator will have more number of poles ?
Which alternator will have more number of poles ? (a) coupled to steam turbine (b) coupled to gas turbine (c) coupled to hydraulic turbine (d) None of the above
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asked
Mar 28, 2018
by
anonymous
In which part of the scale does the pointer indicate more accurately
Last answer:
In about middle of the scale
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249
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1
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asked
Mar 19, 2018
by
anonymous
In the transformer which winding has got more cross-sectional area?
Last answer:
In the transformer low voltage winding has got more cross-sectional area.
transformer
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asked
Mar 19, 2018
by
anonymous
Which winding in a transformer has more number of turns ?
Last answer:
High voltage winding in a transformer has more number of turns.
transformer
turns
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119
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asked
Mar 18, 2018
by
anonymous
Which motor have more efficiency, synchronous motor or induction motor?
Which motor have more efficiency, synchronous motor or induction motor?
Last answer:
Synchronous motor has more efficiency.
efficiency
synchronous
induction
motor
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