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If we conect a two bulbs in series And if we give double phase without neutral then bulb will glow or not??
asked
Jan 16, 2018
by
bhanuprakash
neutral
voltage
two
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3
Answers
answered
Jan 17, 2018
by
Bhole Shankar
No, we need neutral wire to get voltage difference.
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answered
Jul 31, 2018
by
anonymous
The bulb will light due to phase voltage (415v)
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answered
Jul 31, 2018
by
Srinivas
Due to no potential difference between the ends of the circiut there is no existance of current
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commented
Jul 31, 2018
by
anonymous
There is a 415 line voltage.
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Related questions
asked
Mar 25, 2018
by
anonymous
In a three-phase supply floating neutral is undesirable because it way give rise to?
In a three-phase supply floating neutral is undesirable because it way give rise to?
Last answer:
In a three-phase supply floating neutral is undesirable because it way give rise to unequal line voltages across the load.
three
phase
supply
floating
neutral
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87
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1
answer
asked
Aug 21, 2019
by
anonymous
What happens when a neutral wire touches a phase wire ?
What happens when a neutral wire touches a phase wire ?
Last answer:
Maximum current flow due to Short circuit, limited value of fuse will burn else apparatus and conductor will be damaged.
neutral
wire
touches
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84
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2
answers
asked
Apr 17, 2020
by
anonymous
Nodal Analysis with Voltage Sources dependent voltage source and two supernode
Nodal Analysis with Voltage Sources dependent voltage source and two supernode
Last answer:
Nodal Analysis with Voltage Sources dependent voltage source and two supernode
nodal
analysis
with
voltage
sources
dependent
source
and
two
supernode
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85
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1
answer
asked
Mar 20, 2018
by
anonymous
Ungrounded neutral transmission system is not recommended because of system?
Last answer:
Ungrounded neutral transmission system is not recommended because of system insulation being overstressed due to over voltages, insulation overstress may lead to failure and subsequent phase to phase faults, being inadequately protected against ground fault.
ungrounded
neutral
transmission
system
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1
answer
asked
Apr 25, 2018
by
anonymous
Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses
Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 alone is connected to the 120 V source, then it will consume (A) 90 W (B) 80 W (C) 60 W (D) 180 W
Last answer:
Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 alone is connected to the 120 V source, then it will consume 90 W
bulbs
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123
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1
answer
asked
Apr 28, 2018
by
anonymous
The magnetic neutral plane shifts in a dc machine
The magnetic neutral plane shifts in a dc machine (A) in the direction of motion of motor (B) in the direction of motion of generator (C) due to increase in the field flux (D) cause reduction of flash over between commutator segments
Last answer:
The magnetic neutral plane shifts in a dc machine in the direction of motion of generator
magnetic
neutral
plane
shifts
dc
machine
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72
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1
answer
asked
Mar 21, 2018
by
anonymous
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when?
Last answer:
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when there is no load on|he generator.
dc
generator
magnetic
neutral
geometrical
axis
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1
answer
asked
Sep 20, 2018
by
anonymous
Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link
Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link
Last answer:
i) MCB: Miniature circuit breaker operates automatically at the time of fault or over load. And it is used for the protection of electrical installation. They are available from 0.5 A to 100 Amps. ... melts automatically at the time of fault or over load. Fuse must be replaced after the fault.
mcb
socket
outlet
neutral
fuse-link
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1
answer
asked
Apr 27, 2018
by
anonymous
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
Last answer:
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ? Δ-Δ connection
protect
power
transformer
neutral
grounded
fault
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317
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1
answer
asked
Dec 22, 2017
by
anonymous
Which color wire is neutral?
Which color wire is neutral?
Last answer:
Black but I think it depends with the place.
color
wire
neutral
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201
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3
answers
asked
Oct 21, 2017
by
anonymous
If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?
If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?
Last answer:
128 volts ,2048 watts
voltage
power
problem
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2
answers
asked
Aug 19, 2019
by
anonymous
If 1-phase voltage is 220V, why is 3-phase 440V and not 660V ?
If 1-phase voltage is 220V, why is 3-phase 440V and not 660V ?
Last answer:
Phase voltage =220v /( phase to neutral) Line voltage = 380 v ( phase to phase) Phase angle difference 120° So when two phases reach vmax +ve I.e. (+220v) + (+220v) = 440v that time due ... these event happen very fast. Hence we have 440 v only in three phase motor. √3.phase voltage= 380 v.
1-phase
voltage
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131
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4
answers
asked
Mar 20, 2018
by
anonymous
In two part tariff, variation in load factor will affect?
Last answer:
In two part tariff, variation in load factor will affect operating or running charges.
two
part
tariff
variation
load
factor
affect
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53
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1
answer
asked
Apr 27, 2020
by
anonymous
Write two applications of D.C. series motor.
Write two applications of D.C. series motor.
Last answer:
The applications of D.C. series motor: 1. Cranes 2. Hoists 3. Trolley and cars 4. Conveyors 5. For traction work i.e. electric locomotives 6. Elevator 7. Air compressor
write
two
applications
of
d
c
series
motor
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58
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1
answer
asked
Jan 9
by
anonymous
if the displacement of a particle is zero, then what can we say about its distance covered ? (a) it must be zero. (b) it cannot be zero. © it is negative (d) it may or may not be zero.
if the displacement of a particle is zero, then what can we say about its distance covered ? (a) it must be zero. (b) it cannot be zero. © it is negative (d) it may or may not be zero.
uniform
motion
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4
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0
answers
asked
Mar 21, 2018
by
anonymous
The two pressure coils of a single phase power factor meter have?
Last answer:
The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.
two
pressure
coils
single
phase
power
factor
meter
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72
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1
answer
asked
May 20, 2018
by
anonymous
Two incandescent light bulbs of 40 W and 60 W rating are connected in series across the mains, then
Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then . A) The bulbs together consume 100 W B) The bulbs together consume 50 W C) The 60 W bulb glows brighter D) The 40 W bulb glows brighter
Last answer:
Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then . The bulbs together consume 50 W
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133
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1
answer
asked
Mar 19, 2018
by
anonymous
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should?
Last answer:
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should have low contact resistance, be clean and smooth, be of sufficient size and proper shape.
current
excessive
heating
voltage
drop
relay
contacts
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111
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1
answer
asked
Apr 29, 2018
by
anonymous
What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively?
What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these
Last answer:
What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these
rms
voltage
series
rl
circuit
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63
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1
answer
asked
Jun 29, 2019
by
anonymous
Name two good conductors, two good insulators, and two semiconductors.
Name two good conductors, two good insulators, and two semiconductors.
Last answer:
In general all metals are good conductors, with silver the best and copper second.
name
two
good
conductors
insulators
and
semiconductors
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82
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1
answer
asked
May 14, 2018
by
anonymous
Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out
Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out
Last answer:
Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out the other two bulbs will remain glowing
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103
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1
answer
asked
May 7, 2020
by
anonymous
State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.
State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.
Last answer:
Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v
state
any
two
advantages
of
mcb
over
fuse
the
standard
specifications
available
in
market
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104
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1
answer
asked
Sep 5, 2018
by
anonymous
List two types of oscillator, which generates frequency in RF range.
List two types of oscillator, which generates frequency in RF range.
Last answer:
Types of Oscillators generating frequencies in RF range: i) Hartley Oscillator ii) Colpitt’s Oscillator iii) Clapp Oscillator
two
types
oscillator
generates
frequency
rf
range
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47
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1
answer
asked
Mar 20, 2018
by
anonymous
In a two value capacitor motor, the capacitor used for running purposes is?
Last answer:
In a two value capacitor motor, the capacitor used for running purposes is paper spaced oil filled type.
two
value
capacitor
motor
used
running
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81
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1
answer
asked
Mar 25, 2018
by
anonymous
If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?
If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?
Last answer:
0.1s
series
circuit
rl
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122
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2
answers
asked
Mar 25, 2018
by
anonymous
Two resistances Rl and Ri are connected in series across the voltage...
Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across?
Last answer:
Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across Rl.
resistances
series
voltage
source
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112
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1
answer
asked
Jan 9
by
anonymous
How many 3 letters words (with or without meaning) can be formed out of the letters of the word, "PLATINUM", if repetition of letters is not allowed? a) 742 b) 850 c) 990 d) 336
How many 3 letters words (with or without meaning) can be formed out of the letters of the word, "PLATINUM", if repetition of letters is not allowed? a) 742 b) 850 c) 990 d) 336
Last answer:
Answer: D) The word PLATINUM contains 8 different letters. Required number of words = number of arrangements of 8 letters taking 3 at a time. = 8p3 = 8 x 7 x 6 = 56×6 = 336
permutation
combination
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7
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1
answer
asked
Mar 28, 2018
by
anonymous
There are three 100 bulbs in parallel across 220 V.50 Hz line. If one bulb burns out:
Last answer:
There are three 100 bulbs in parallel across 220 V.50 Hz line. If one bulb burns out: Remaining two bulbs will produce light.
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79
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1
answer
asked
Mar 25, 2018
by
anonymous
Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open?
Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open?
Last answer:
Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open the other two bulbs will light.
bulbs
parallel
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151
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1
answer
asked
May 7, 2020
by
anonymous
Application one lamp controlled from two places
Application one lamp controlled from two places
Last answer:
Application one lamp controlled from two places: 1. For Stair case wiring 2. Hospital Wiring ( For operating the lamp in room and nursing station) 3. Bedroom Lighting.
application
one
lamp
controlled
from
two
places
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0
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71
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1
answer
asked
May 7, 2020
by
anonymous
State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
Last answer:
(i) Application of PVC paper : 1. It is used in slot lining or motor winding insulation purpose 2. For Insulation of Transformer winding (ii) Application of Porcelain : 1. Mainly used for manufacturing ... on withstand temperature : * H' & C' Class of insulation i e. 180° and above 180°C
state
two
applications
of
i
pvc
paper
ii
porcelain
with
type
class
based
on
withstand
temperature
is
insulating
material
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69
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1
answer
asked
Jun 29, 2019
by
anonymous
List at least two examples that show how static electricity can be generated.
List at least two examples that show how static electricity can be generated.
Last answer:
Examples of how static electricity can be generated include combing your hair, walking across a carpeted room, or sliding two pieces of plastic across each other.
list
at
least
two
examples
that
show
how
static
electricity
can
be
generated
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87
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1
answer
asked
Sep 6, 2018
by
anonymous
Merits of two wattmeter method
Merits of two wattmeter method
Last answer:
Advantages of Two Wattmeter Method for 3-Phase Power Measurement: 1) It is used for balanced as well as unbalanced load. 2) For the star type load, it is not necessary to ... reactive volt-amperes for balanced loads also. 7) The circuit connections are independent of load connection.
merits
two
wattmeter
method
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60
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2
answers
asked
May 8, 2018
by
anonymous
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be :
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be : (A) 34.64 kVA (B) 75 kVA (C) 20 kVA (D) None of the above
Last answer:
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be : 34.64 kVA
kva
rating
three-phase
transformer
voltage
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1
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130
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1
answer
asked
Apr 30, 2018
by
anonymous
A 3-phase voltage source inverter operates in 180° conduction mode with a star connected resistive load. If input
A 3-phase voltage source inverter operates in 180° conduction mode with a star connected resistive load. If input dc voltage is 100 V, then the peak to peak output line voltage is :
Last answer:
A 3-phase voltage source inverter operates in 180° conduction mode with a star connected resistive load. If input dc voltage is 100 V, then the peak to peak output line voltage is : 200 V
3-phase
voltage
source
inverter
operates
conduction
mode
star
resistive
load
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137
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1
answer
asked
Apr 29, 2018
by
anonymous
Two port networks are connected in cascade. The parameters of the network are obtained by multiplying in individual
Two port networks are connected in cascade. The parameters of the network are obtained by multiplying in individual
Last answer:
Two port networks are connected in cascade. The parameters of the network are obtained by multiplying in individual ABCD parameter matrix
two
port
networks
cascade
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81
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1
answer
asked
Apr 29, 2018
by
anonymous
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will
Last answer:
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will not change
network
linear
resistors
ideal
voltage
sources
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0
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162
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1
answer
asked
May 3, 2020
by
anonymous
Illustrate with neat wiring diagram a single lamp control by two point method.
Illustrate with neat wiring diagram a single lamp control by two point method.
Last answer:
Single lamp control by two point method: This system is commonly used for stair case wiring. It consists of two way switches (the switch operates always in one of the two possible positions) the ... the person will change the position of switch S2, so that the lamp will be switched OFF'.
illustrate
with
neat
wiring
diagram
a
single
lamp
control
by
two
point
method
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72
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1
answer
asked
May 8, 2018
by
anonymous
Which of the following connection of transformers will give highest value of secondary voltage ?
Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary
Last answer:
Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary
connection
transformers
highest
value
secondary
voltage
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107
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1
answer
asked
May 3, 2020
by
anonymous
State two types of Electronic dimmer.
State two types of Electronic dimmer.
Last answer:
Two types of electronic dimmers are: 1) S.C.R. operated dimmer 2) Triac operated dimmer
state
two
types
of
electronic
dimmer
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69
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1
answer
asked
Apr 18, 2020
by
anonymous
Mesh Analysis with two supermesh
Mesh Analysis with two supermesh
Last answer:
.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
mesh
analysis
with
two
supermesh
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136
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2
answers
asked
Feb 17, 2020
by
anonymous
Nodal analysis problem two current source
Last answer:
Nodal analysis problem two current source
nodal
analysis
problem
two
current
source
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85
views
1
answer
asked
Jul 25, 2019
by
anonymous
Draw construction of SCR using two transistor model. Explain its operation.
Draw construction of SCR using two transistor model. Explain its operation.
Last answer:
Two Transistor Model of SCR or Thyristor
two
transistor
model
construction
scr
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213
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1
answer
asked
Feb 15, 2018
by
anonymous
Explain two quadrant chopper.
Explain two-quadrant chopper.........
Last answer:
Two quadrant chopper: There are two semiconductor controllable switches in the two-quadrant chopper. Two quadrant type A chopper: The figure shows the type A chopper. Both the switch never turn on at ... 2 are turned on then Vo=Vs. When chopper 1 and chopper 2 are off then Vo=-Vs.
two
quadrant
chopper
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327
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1
answer
asked
Jan 10
by
anonymous
A water cistern is two-fifth full. Tap A can fill a cistern in 20 mins and tap B can empty it in 12mins. If both the taps are open, how long will take to empty or fill the cistern completey? A) 10 mins B) 12mins C) 14mins D) 16 mins
A water cistern is two-fifth full. Tap A can fill a cistern in 20 mins and tap B can empty it in 12mins. If both the taps are open, how long will take to empty or fill the cistern completey? A) 10 mins B) 12mins C) 14mins D) 16 mins
Last answer:
B Clearly tap B is faster than the Tap A and so, the cistern will be emptied Part to be emptied = 2/5 Part emptied by (A+B) in 1 min = (1/12 – 1/20) = 5-3/60 = 2/60 =>1/30 Therefore 1/30 : 2/5 :: 1;x x= 1*2/5 *30/1 = 12mins so the tank will be emptied in 12mins.
pipes-and-cistern
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4
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asked
Apr 11, 2018
by
anonymous
One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is...
One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness
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99
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0
answers
asked
May 3, 2018
by
anonymous
The voltage gains of the amplifier with and without feedback are 20 and 100 respectively. The percentage of
The voltage gains of the amplifier with and without feedback are 20 and 100 respectively. The percentage of negative feedback would be
Last answer:
The voltage gains of the amplifier with and without feedback are 20 and 100 respectively. The percentage of negative feedback would be 4%
voltage
gains
amplifier
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88
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1
answer
asked
Jan 11
by
anonymous
The ratio of two persons A and B salaries in the ratio 12:7 if 12% increased salary yearly then what will be the B Salary after 2 yrs if salary of A is 12000. A) 7808 B) 8700 C) 7,500 D) 8781
The ratio of two persons A and B salaries in the ratio 12:7 if 12% increased salary yearly then what will be the B Salary after 2 yrs if salary of A is 12000. A) 7808 B) 8700 C) 7,500 D) 8781
Last answer:
Answer: D 12:7 = 12,000 : 7,000 12% = B = 840……1st yr and B = 941 …..2nd yr New inc B = 7000+840+941 = 8781
ratio-and-proportion
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Jan 10
by
anonymous
Two pipe P & Q fill a tab in 5 hrs and 20 hrs respectively. If both the pipes are open then due to the leakage, it took 30mins more to fill the tab. If the tab is full, how long will it take for the leakage alone to empty the tank? A) 28 B) 24 C) 36 D) 12
Two pipe P & Q fill a tab in 5 hrs and 20 hrs respectively. If both the pipes are open then due to the leakage, it took 30mins more to fill the tab. If the tab is full, how long will it take for the leakage alone to empty the tank? A) 28 B) 24 C) 36 D) 12
Last answer:
C Part filled by(P+Q) in 1 hr = 1/5 + 1/20 = ¼ So P & Q together can fill the tank in 4 hrs. Work done by the leak in 1 hr = 1 / 4 - 2/9 Leak will empty the tank in 36 hrs.
pipes-and-cistern
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Jan 10
by
anonymous
Anu and Banu invested rupees Rs.26000 and Rs.22000 respectively. Anu being an active partner will get Rs.350 every month extra for running the business. In two years if Anu receives a total of Rs. 18000, then what is profit earned by Banu in two years. A) 2200 B) 3300 C) 4400 D) None
Anu and Banu invested rupees Rs.26000 and Rs.22000 respectively. Anu being an active partner will get Rs.350 every month extra for running the business. In two years if Anu receives a total of Rs. 18000, then what is profit earned by Banu in two years. A) 2200 B) 3300 C) 4400 D) None
Last answer:
Answer: C) Profit ratio at Anu &Banu is , Anu: Banu=26000 :22000. Anu :Banu =13:11 Anu being an active e partner will get Rs 350 / every month. 2 years receive = Rs. 8400 Balance amount of Anu =18000 -8400 = 9600 Profit gained Banu in 2 years =9600/24 *11 = Rs.4400
partnership
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