Electrical Engineering (EE)
Two wattmeters used to measure power of a 3-phase balanced load reads W1, and W2. The reactive Dower drawn bv the load is- a)W1 + W2
- b)W1 - W2
- c)√3(W1 + W2)
- d)√3(W1 - W2)
Correct answer is option 'D'. Can you explain this answer?
Two wattmeters used to measure power of a 3-phase balanced load reads W1, and W2. The reactive Dower drawn bv the load is
a)
W1 + W2
b)
W1 - W2
c)
√3(W1 + W2)
d)
√3(W1 - W2)
AMAN MEHROTRA answered • 9 hours agoWe know that:
(W1-W2) = VLILsin φ = Q1 - φ
so, Q3 - φ = √W1 - W2)
(W1-W2) = VLILsin φ = Q1 - φ
so, Q3 - φ = √W1 - W2)
Arunpaul Paul asked • 14 minutes agoThe starting winding is opened by a centrifugal switch when motor has come upto?
The impulse response of an initially relaxed linear system is e-3t u(t). To produce a response of te-3t u(t), the input must be equal to- a) 3e-t u(t)
- b)
- c) e-3t u(t)
- d)e-tu(t)
Correct answer is option 'C'. Can you explain this answer?
The impulse response of an initially relaxed linear system is e-3t u(t). To produce a response of te-3t u(t), the input must be equal to
a)
3e-t u(t)
b)
c)
e-3t u(t)
d)
e-tu(t)
ANIMESH SAHU answered • 9 hours agoWe know that, impulse response = 
=
Transfer fuction.
For given system,
Now, c(t) = t e-3t
∴
So, R{s) = C(s) x (s + 3)
or, r(t) = Required input = e-3t u(t)
=Transfer fuction.
For given system,
Now, c(t) = t e-3t
∴
So, R{s) = C(s) x (s + 3)
or, r(t) = Required input = e-3t u(t)
Anil Swami asked • 20 minutes agoConsider the following statements: In root-locus plot, the breakaway points
1. Ned not always be on real axis alone
2. Must lie on the root loci
4. Must lie between 0 and – 1
Which of these statements are correct ?- a)1, 2 and 3
- b)1 and 3
- c)2 and 3
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements: In root-locus plot, the breakaway points
1. Ned not always be on real axis alone
2. Must lie on the root loci
4. Must lie between 0 and – 1
Which of these statements are correct ?
1. Ned not always be on real axis alone
2. Must lie on the root loci
4. Must lie between 0 and – 1
Which of these statements are correct ?
a)
1, 2 and 3
b)
1 and 3
c)
2 and 3
d)
None of the above
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t(t > 0). The transfer function of the system is- a)
- b)
- c)
- d)
Correct answer is option 'A'. Can you explain this answer?
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t(t > 0). The transfer function of the system is
a)
b)
c)
d)
NAMAN UPADHYAY answered • 9 hours agoGiven, c(t) = te-t
∴
Now, r(t) = u(t) (unit step input)
∴
So,
∴
Now, r(t) = u(t) (unit step input)
∴
So,
The input to the 3-phase, 50 Hz circuit shown in figure below is 100 V. For a phase sequence of ABC, the wattmeters would read
- a)W1 = 866 W and W2 = 866 W
- b)W1 = 577.35 W and W2 = 1154.70 W
- c)W1 = 1154.72 W and W2 = 577.36 W
- d)W1 = 1732 W and W2 = 0 W
Correct answer is option 'B'. Can you explain this answer?
The input to the 3-phase, 50 Hz circuit shown in figure below is 100 V. For a phase sequence of ABC, the wattmeters would read
a)
W1 = 866 W and W2 = 866 W
b)
W1 = 577.35 W and W2 = 1154.70 W
c)
W1 = 1154.72 W and W2 = 577.36 W
d)
W1 = 1732 W and W2 = 0 W
DIVANSHU GUPTA answered • 9 hours agoWattmeter readings are:
W1 = VLIL cos (30 + φ)
and W2 = \/LIL cos (30 - φ)
Here,
and φ = 30°
∴
Now,
and
W1 = VLIL cos (30 + φ)
and W2 = \/LIL cos (30 - φ)
Here,
and φ = 30°
∴
Now,
and
Saurav Kumar asked • 44 minutes agoIn connection with arc the extinction in circuit breaker, resistance switching is employed where in a resistance is placed in parallel with the poles of the circuit breaker as shown in the figure. This process introduces damping in the LC circuit. For critical damping, the value of 'R' should be equal to
- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
In connection with arc the extinction in circuit breaker, resistance switching is employed where in a resistance is placed in parallel with the poles of the circuit breaker as shown in the figure. This process introduces damping in the LC circuit. For critical damping, the value of 'R' should be equal to
a)
b)
c)
d)
The Laplace transform of unity function is- a)1
- b) zero
- c) s
- d)1/s
Correct answer is option 'D'. Can you explain this answer?
The Laplace transform of unity function is
a)
1
b)
zero
c)
s
d)
1/s
NAVEEN TYAGI answered • 9 hours agoThe laplace transform of unity function i.e.
Consider the function F(s) = 
where F(s) is the Laplace transform of f(t) 
is equal to- a)5
- b)2.5
- c) infinity
- d)zero
Correct answer is option 'B'. Can you explain this answer?
Consider the function F(s) = where F(s) is the Laplace transform of f(t) is equal to
where F(s) is the Laplace transform of f(t) is equal toa)
5
b)
2.5
c)
infinity
d)
zero
ANOOP KUMAR answered • 9 hours agoUsing final value theorem
A three-phase 220 V supply is applied to a balanced A-connected three phase load. The phase current being Iab =. 10∠-30°A as shown in the given figure, The total power received by the Δ-load is
- a)2250 W
- b)6232 W
- c)5715 W
- d)-2200 W
Correct answer is option 'C'. Can you explain this answer?
A three-phase 220 V supply is applied to a balanced A-connected three phase load. The phase current being Iab =. 10∠-30°A as shown in the given figure, The total power received by the Δ-load is
a)
2250 W
b)
6232 W
c)
5715 W
d)
-2200 W
AVANEENDRA JODHA answered • 9 hours agoIab = 10∠-30°A
So, 1bc = 10∠-150°A
and Ica = 10∠-270° A
Phase current,
Ia = Iab - I ca = ( 10 ∠- 30° - 10∠-270°) A
= 10[cos 30° - jsin 30° - cos 270° + jsin 270°]
= 10[0.866- j0 .5 - 0 - j1]
= 8.66-j15 = 17.32 ∠-60° A
∴ Ia = 17.32 ∠-60°A
∴ Total power received
= √3 VLIL cos φL
= 3VPIP cos φph
= 3 x 220 x 10 x cos 30°
= 5715W
So, 1bc = 10∠-150°A
and Ica = 10∠-270° A
Phase current,
Ia = Iab - I ca = ( 10 ∠- 30° - 10∠-270°) A
= 10[cos 30° - jsin 30° - cos 270° + jsin 270°]
= 10[0.866- j0 .5 - 0 - j1]
= 8.66-j15 = 17.32 ∠-60° A
∴ Ia = 17.32 ∠-60°A
∴ Total power received
= √3 VLIL cos φL
= 3VPIP cos φph
= 3 x 220 x 10 x cos 30°
= 5715W
Kishan Pathak asked • 1 hour agoAs compared to full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of- a)higher current carrying capacity
- b)lower peak inverse voltage requirement
- c)lower ripple factor
- d)higher efficiency
Correct answer is option 'B'. Can you explain this answer?
As compared to full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of
a)
higher current carrying capacity
b)
lower peak inverse voltage requirement
c)
lower ripple factor
d)
higher efficiency
Which of the following is not true regarding an open loop control system?- a)Highly affected by non-linearities.
- b)Open loop systems are inaccurate.
- c)These are not reliable.
- d)The effect of parameter variation and internal noise is less.
Correct answer is option 'D'. Can you explain this answer?
Which of the following is not true regarding an open loop control system?
a)
Highly affected by non-linearities.
b)
Open loop systems are inaccurate.
c)
These are not reliable.
d)
The effect of parameter variation and internal noise is less.
ANURAG ANNAPURNA answered • 9 hours agoThe effect of parameter variation and internal noise is more in an open loop system.
Indrajit Mal asked • 2 hours agoA pure capacitance connected across 50Hz, 230V supply consumes 0.04W. This consumption is attributed to- a)ohmic loss due to ohmic resistance of plates
- b)loss of energy in dielectrics
- c)capacitive reactance in ohms
- d)both (a) & (b)
Correct answer is option 'D'. Can you explain this answer?
A pure capacitance connected across 50Hz, 230V supply consumes 0.04W. This consumption is attributed to
a)
ohmic loss due to ohmic resistance of plates
b)
loss of energy in dielectrics
c)
capacitive reactance in ohms
d)
both (a) & (b)
The unit impulse response of a control system is given by c(t) = -te-t + e-t. Its transfer function is- a)
- b)
- c)
- d)
Correct answer is option 'D'. Can you explain this answer?
The unit impulse response of a control system is given by c(t) = -te-t + e-t. Its transfer function is
a)
b)
c)
d)
HARSH RAJ answered • 9 hours agoGiven, c(t) = -te-t + e-t (impulse response)
We know that,
(Impuise response} = Transfer function (H(s))
∴
We know that,
(Impuise response} = Transfer function (H(s))∴
Galloping in transmission line conductors arises generally due to- a)Asymmetrical layers of ice formation
- b)Vortex phenomenon in light winds
- c)Heavy weight of the line conductor configuretions
- d)Adoption of horizontal conductor configuretions
Correct answer is option 'A'. Can you explain this answer?
Galloping in transmission line conductors arises generally due to
a)
Asymmetrical layers of ice formation
b)
Vortex phenomenon in light winds
c)
Heavy weight of the line conductor configuretions
d)
Adoption of horizontal conductor configuretions
SHAHIL AGRAWAL answered • 9 hours agoGalloping is a low frequency, large amplitude, wind-induced vibration of both single and bundle overhead conductors, with a single or a few loops of standing waves per span. It is caused by moderately strong, steady crosswind acting upon an asymmetrically- iced conductor surface.
Jeya Kumar asked • 3 hours agoA 2-terminal network consist of one of the RLC elements. The element is connected to an ac supply. The current through the element is IA when an inductor is inserted in series between the source and element 2IA the current through the element becomes. What is this element ?- a)A resistor
- b)An inductor
- c)A capacitor
- d)Cannot be a single element
Correct answer is option 'C'. Can you explain this answer?
A 2-terminal network consist of one of the RLC elements. The element is connected to an ac supply. The current through the element is IA when an inductor is inserted in series between the source and element 2IA the current through the element becomes. What is this element ?
a)
A resistor
b)
An inductor
c)
A capacitor
d)
Cannot be a single element
Manoj Pawar asked • 5 hours agoIn the optimum generator scheduling different power plants, the minimum fuel cost is obtained when- a)only the incremental fuel cost of each plant is the same
- b)the penalty factor of each plant is the same
- c)the ratio of the incremental fuel cost to the penalty factor of each plant is the same.
- d)the incremental fuel cost of each plant multiplied by its penalty factor is the same
Correct answer is option 'D'. Can you explain this answer?
In the optimum generator scheduling different power plants, the minimum fuel cost is obtained when
a)
only the incremental fuel cost of each plant is the same
b)
the penalty factor of each plant is the same
c)
the ratio of the incremental fuel cost to the penalty factor of each plant is the same.
d)
the incremental fuel cost of each plant multiplied by its penalty factor is the same
Manoj Sharma asked • 5 hours agoIn a thyrite lightning arrester the resistance- a)varies linearly with applied voltage
- b)increases with the applied voltage
- c)Decreases linearly with the applied voltage
- d)is high at low current and low at high current
Correct answer is option 'D'. Can you explain this answer?
In a thyrite lightning arrester the resistance
a)
varies linearly with applied voltage
b)
increases with the applied voltage
c)
Decreases linearly with the applied voltage
d)
is high at low current and low at high current
Mohsin Khan asked • 6 hours agoWhile using air-blast circuit beaker, current chopping is a phenomenon often observed when- a)A long overhead line is switched off
- b)A bank of capacitors is switched off
- c)A transformer on no-load is switched off
- d)A heavy load is switched off
Correct answer is option 'C'. Can you explain this answer?
While using air-blast circuit beaker, current chopping is a phenomenon often observed when
a)
A long overhead line is switched off
b)
A bank of capacitors is switched off
c)
A transformer on no-load is switched off
d)
A heavy load is switched off
Aman Sajwan asked • 7 hours agoIn a 3 phase full converter, the firing angle is less than 60º. The instantaneous output voltage- a)will have positive part only
- b)will have both positive and negative parts
- c)may have both positive and negative parts
- d)will have negative part if load is inductive
Correct answer is option 'A'. Can you explain this answer?
In a 3 phase full converter, the firing angle is less than 60º. The instantaneous output voltage
a)
will have positive part only
b)
will have both positive and negative parts
c)
may have both positive and negative parts
d)
will have negative part if load is inductive
Pinkesh Patel asked • 7 hours agoThe output of a continuous-time linear time-invariant system is denoted by T{x(t)} where x(t) is the input signal A signal z(t) is called eigen-signal of the system T, when T{z(t)} = yz(t), where γ is a complex number, in general and is called an eigenvalue of T. Suppose the impulse response of the system T is real and even. Which of the following statements is TRUE?- a)cos(t) is an eigen-signal but sin(t) is not
- b)cos(t) and sin(t) are both eigen-signals but with different eigenvalues
- c)sin(t) is an eigen-signal but cos(t) is not
- d)cos(t) and sin(t) are both eigen-signals with identical eigenvalues
Correct answer is option 'D'. Can you explain this answer?
The output of a continuous-time linear time-invariant system is denoted by T{x(t)} where x(t) is the input signal A signal z(t) is called eigen-signal of the system T, when T{z(t)} = yz(t), where γ is a complex number, in general and is called an eigenvalue of T. Suppose the impulse response of the system T is real and even. Which of the following statements is TRUE?
a)
cos(t) is an eigen-signal but sin(t) is not
b)
cos(t) and sin(t) are both eigen-signals but with different eigenvalues
c)
sin(t) is an eigen-signal but cos(t) is not
d)
cos(t) and sin(t) are both eigen-signals with identical eigenvalues
Renjiv Mohanan asked • 8 hours agoIn extrinsic semiconductor, conductivity varies with respect to temperature.- a)For low temperature, it decreases then increases
- b)It decreases as temperature increases
- c)It increases as temperature increases
- d)For low temperature it increases then increases
Correct answer is option 'B'. Can you explain this answer?
In extrinsic semiconductor, conductivity varies with respect to temperature.
a)
For low temperature, it decreases then increases
b)
It decreases as temperature increases
c)
It increases as temperature increases
d)
For low temperature it increases then increases
Potu Madhavi asked • 11 hours agoFor the same voltage drop, increasing the voltage of a distributor n-times.- a)reduces the x-section of the conductor by n times
- b)increases the x-section of the conductor by n times
- c)reduces the x-section of the conductor by n2 times
- d)increases the x-section of the conductor by n2 times.
Correct answer is option 'A'. Can you explain this answer?
For the same voltage drop, increasing the voltage of a distributor n-times.
a)
reduces the x-section of the conductor by n times
b)
increases the x-section of the conductor by n times
c)
reduces the x-section of the conductor by n2 times
d)
increases the x-section of the conductor by n2 times.
Shital Devake asked • 13 hours agoGalloping in transmission line conductors arises generally due to- a)Asymmetrical layers of ice formation
- b)Vortex phenomenon in light winds
- c)Heavy weight of the line conductors
- d)Adoption of horizontal conductor configurations
Correct answer is option 'A'. Can you explain this answer?
Galloping in transmission line conductors arises generally due to
a)
Asymmetrical layers of ice formation
b)
Vortex phenomenon in light winds
c)
Heavy weight of the line conductors
d)
Adoption of horizontal conductor configurations
Taranhaar Kumar asked • 13 hours agoVoltage remaining constant, if the frequency is increased then- a)eddy current losses will decrease
- b)hysteresis loss will decrease
- c)eddy current losses will remain unchanged
- d)hysteresis losses will remain unchanged
Correct answer is option 'C'. Can you explain this answer?
Voltage remaining constant, if the frequency is increased then
a)
eddy current losses will decrease
b)
hysteresis loss will decrease
c)
eddy current losses will remain unchanged
d)
hysteresis losses will remain unchanged
Md Suhail Khan asked • 13 hours agoWhich property of delta function indicates the equality between the area under the product of function with shifted impulse and the value of function located at unit impulse instant ?- a)Replication
- b)Sampling
- c)Scaling
- d)Product
Correct answer is option 'B'. Can you explain this answer?
Which property of delta function indicates the equality between the area under the product of function with shifted impulse and the value of function located at unit impulse instant ?
a)
Replication
b)
Sampling
c)
Scaling
d)
Product
Suraj Kumar asked • 13 hours agoWhich of the following device can be used as a phase advancer ?- a)3-f induction motor squirrel cage type
- b)3-f induction motor slip ring type
- c)synchronous motor working at leading power factor
- d)synchronous motor working at lagging power factor
Correct answer is option 'C'. Can you explain this answer?
Which of the following device can be used as a phase advancer ?
a)
3-f induction motor squirrel cage type
b)
3-f induction motor slip ring type
c)
synchronous motor working at leading power factor
d)
synchronous motor working at lagging power factor
Sunil Manjani asked • 15 hours agoThe Hartley-Shannon theorem sets a limit on the- a)highest frequency that may be sent over a given channel
- b)maximum capacity of channel with a given noise level
- c)maximum number of coding levels in a channel with a given noise level
- d)maximum number of quantizing levels in a channel with a given noise level
Correct answer is option 'B'. Can you explain this answer?
The Hartley-Shannon theorem sets a limit on the
a)
highest frequency that may be sent over a given channel
b)
maximum capacity of channel with a given noise level
c)
maximum number of coding levels in a channel with a given noise level
d)
maximum number of quantizing levels in a channel with a given noise level
Irshad Shaikh asked • 16 hours agoThe action of JFET in its equivalent circuit can best be represented as a
- a) current controlled current source
- b) current controlled voltage source
- c) voltage controlled voltage source
- d) voltage controlled current source
Correct answer is option 'D'. Can you explain this answer?
The action of JFET in its equivalent circuit can best be represented as a
a)
current controlled current sourceb)
current controlled voltage sourcec)
voltage controlled voltage sourced)
voltage controlled current source 
Hemalatha S asked • 16 hours agoThe use of electronic instruments is becoming more extensive because they have- a)the capability to respond to signals from remote places
- b)afast response and compatibility with digital computers
- c)both (a) and (b)
- d)a high sensitivity but less reliability
Correct answer is option 'C'. Can you explain this answer?
The use of electronic instruments is becoming more extensive because they have
a)
the capability to respond to signals from remote places
b)
afast response and compatibility with digital computers
c)
both (a) and (b)
d)
a high sensitivity but less reliability
Pinkesh Patel asked • 16 hours agoIn the feedback network shown below, if the feedback factor k is increased, then the
- a)input impedance increases and other output impedance decreases
- b)input impedance increases and output impedance also increases.
- c)input impedance decreases and output impedance also decreases.
- d)input impedance decreases and output impedance increases.
Correct answer is option 'A'. Can you explain this answer?
In the feedback network shown below, if the feedback factor k is increased, then the
a)
input impedance increases and other output impedance decreases
b)
input impedance increases and output impedance also increases.
c)
input impedance decreases and output impedance also decreases.
d)
input impedance decreases and output impedance increases.
Pinkesh Patel asked • 16 hours agoThe Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is- a)ZVS during turn off
- b)ZVS during turn-on
- c)ZCS during turn off
- d)ZCS during turn-on
Correct answer is option 'D'. Can you explain this answer?
The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is
a)
ZVS during turn off
b)
ZVS during turn-on
c)
ZCS during turn off
d)
ZCS during turn-on
Amit Parashar asked • 18 hours agoA 50 Hz, 11 kV, 3 phase alternator with earthed neutral having a reactance of 3 ohms per phase and is connected to a bus bar through a circuit breaker, if the distributed capacitance upto CB between the phase and neutral is 0.01 μ F.What is the peak re striking voltage?- a)18.36 kV
- b)17.96 kV
- c)15.96 kV
- d)12.65 kV
Correct answer is option 'B'. Can you explain this answer?
A 50 Hz, 11 kV, 3 phase alternator with earthed neutral having a reactance of 3 ohms per phase and is connected to a bus bar through a circuit breaker, if the distributed capacitance upto CB between the phase and neutral is 0.01 μ F.
What is the peak re striking voltage?
a)
18.36 kV
b)
17.96 kV
c)
15.96 kV
d)
12.65 kV
Pinkesh Patel asked • 19 hours agoIn the circuit shown below, Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5V, X and Y are digital signals with 0V as logic 0 and Voc as logic 1, then the Boolean expression for Z is
- a)XY
- b)
- c)
- d)
Correct answer is option 'B'. Can you explain this answer?
In the circuit shown below, Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5V, X and Y are digital signals with 0V as logic 0 and Voc as logic 1, then the Boolean expression for Z is
a)
XY
b)
c)
d)
Digvijay Kumar asked • 19 hours agoThe load currents in short-circuit calculation are neglected because
1. short-circuit currents are much larger than load currents.
2. short-circuit currents are greatly out of phase with load currents.
Which of these statement(s) is/are correct ?- a)neither 1 nor 2
- b)2 alone
- c)1 alone
- d)1 and 2
Correct answer is option 'C'. Can you explain this answer?
The load currents in short-circuit calculation are neglected because
1. short-circuit currents are much larger than load currents.
2. short-circuit currents are greatly out of phase with load currents.
Which of these statement(s) is/are correct ?
1. short-circuit currents are much larger than load currents.
2. short-circuit currents are greatly out of phase with load currents.
Which of these statement(s) is/are correct ?
a)
neither 1 nor 2
b)
2 alone
c)
1 alone
d)
1 and 2
Pinkesh Patel asked • 19 hours agoStatement for Linked Answer Questions: 64 & 65The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.In the interval when vo < 0 and io > 0 the pair of devices which conducts the load current is- a)Q1 , Q2
- b)Q3 , Q4
- c)D1 , D2
- d)D1 , D2
Correct answer is option 'D'. Can you explain this answer?
Statement for Linked Answer Questions: 64 & 65
The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
In the interval when vo < 0 and io > 0 the pair of devices which conducts the load current is
a)
Q1 , Q2
b)
Q3 , Q4
c)
D1 , D2
d)
D1 , D2
Vikash Kumar asked • 20 hours agoA squirrel cage induction motor having a rated slip of 2% on full load has a starting torque of 50% of full load torque. The starting current is- a)two times the full load current
- b)four times the full load current
- c)five times the full load current
- d)equal to the full load current
Correct answer is option 'C'. Can you explain this answer?
A squirrel cage induction motor having a rated slip of 2% on full load has a starting torque of 50% of full load torque. The starting current is
a)
two times the full load current
b)
four times the full load current
c)
five times the full load current
d)
equal to the full load current
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