The maximum value of power factor is ____ and it exists in a pure____ circuit.

MGVCL Exam Paper (30-07-2021 Shift 3)
The maximum value of power factor is and it exists in a pure circuit.

0.866, inductive

1, inductive

0.866, resistive

1, resistive

0.866, inductive

1, inductive

0.866, resistive

1, resistive

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MGVCL Exam Paper (30-07-2021 Shift 3)
If a cable of homogeneous insulation has maximum stress of 6 kV/mm, then the dielectric strength of insulation should be ____

3 kV/mm

6 kv/mm

12 kV/mm

1.5 kV/mm

3 kV/mm

6 kv/mm

12 kV/mm

1.5 kV/mm

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MGVCL Exam Paper (30-07-2021 Shift 3)
In which of the following situations, there is no need to provide directional overcurrent protection.

single end fed, parallel feeder

ring main

single end fed, single feeder

double end fed, single feeder

single end fed, parallel feeder

ring main

single end fed, single feeder

double end fed, single feeder

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MGVCL Exam Paper (30-07-2021 Shift 3)
If the power supplied by current source shown in figure is double of that supplied by the voltage source, then the value of 'R' is

2.5 Ω

7.5 Ω

5 Ω

3.33 Ω

2.5 Ω

7.5 Ω

5 Ω

3.33 Ω

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MGVCL Exam Paper (30-07-2021 Shift 3)
The current in the coil of a large electromagnet falls from 6 A to 2 A in 10 ms. The induced emf across the coil is 100 V. Find the self-inductance of the coil.

1.25 H

0.25 H

0.75 H

0.5 H

1.25 H

0.25 H

0.75 H

0.5 H

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MGVCL Exam Paper (30-07-2021 Shift 3)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 400 W and -50 W. Calculate the reactive power taken by the load

450√3 VAR

350√3 VAR

450/√3 VAR

350/√3 VAR

450√3 VAR

350√3 VAR

450/√3 VAR

350/√3 VAR

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MGVCL Exam Paper (30-07-2021 Shift 3)

MGVCL Exam Paper (30-07-2021 Shift 3) The maximum value of power factor is ____ and it exists in a pure____ circuit.

MGVCL Exam Paper (30-07-2021 Shift 3) If a cable of homogeneous insulation has maximum stress of 6 kV/mm, then the dielectric strength of insulation should be ____

MGVCL Exam Paper (30-07-2021 Shift 3) In which of the following situations, there is no need to provide directional overcurrent protection.

MGVCL Exam Paper (30-07-2021 Shift 3) If the power supplied by current source shown in figure is double of that supplied by the voltage source, then the value of 'R' is

MGVCL Exam Paper (30-07-2021 Shift 3) The current in the coil of a large electromagnet falls from 6 A to 2 A in 10 ms. The induced emf across the coil is 100 V. Find the self-inductance of the coil.

MGVCL Exam Paper (30-07-2021 Shift 3) Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 400 W and -50 W. Calculate the reactive power taken by the load

MGVCL Exam Paper (30-07-2021 Shift 3)
The maximum value of power factor is and it exists in a pure circuit.

MGVCL Exam Paper (30-07-2021 Shift 3)
If a cable of homogeneous insulation has maximum stress of 6 kV/mm, then the dielectric strength of insulation should be ____

MGVCL Exam Paper (30-07-2021 Shift 3)
In which of the following situations, there is no need to provide directional overcurrent protection.

MGVCL Exam Paper (30-07-2021 Shift 3)
If the power supplied by current source shown in figure is double of that supplied by the voltage source, then the value of 'R' is

MGVCL Exam Paper (30-07-2021 Shift 3)
The current in the coil of a large electromagnet falls from 6 A to 2 A in 10 ms. The induced emf across the coil is 100 V. Find the self-inductance of the coil.

MGVCL Exam Paper (30-07-2021 Shift 3)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 400 W and -50 W. Calculate the reactive power taken by the load