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)
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.

0.75 H

0.5 H

0.25 H

1.25 H

0.75 H

0.5 H

0.25 H

1.25 H

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MGVCL Exam Paper (30-07-2021 Shift 3)
A single phase motor connected to 400 V, 50 Hz supply takes 25 A at a power factor of 0.75 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.95 lagging.

82.55 pF

62.55 pF

92.55 pF

72.55 pF

82.55 pF

62.55 pF

92.55 pF

72.55 pF

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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.

double end fed, single feeder

ring main

single end fed, parallel feeder

single end fed, single feeder

double end fed, single feeder

ring main

single end fed, parallel feeder

single end fed, single feeder

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MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

Core movement

Short circuits

Winding damage

All of these

Core movement

Short circuits

Winding damage

All of these

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which among these components connects to physical equipments of the distribution system?

Remote Terminal Unit

None of these

Communication infrastructure

Central control room with host computers

Remote Terminal Unit

None of these

Communication infrastructure

Central control room with host computers

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MGVCL Exam Paper (30-07-2021 Shift 3)
1. મોટેભાગે 'જાણે' શબ્દ હોય ત્યારે,ઉત્પ્રેક્ષા અલંકાર બને છે.
૨. જયારે ઉપમેય અને ઉપમાન એક જ હોય ત્યારે ઉપમા અલંકાર બને છે.
સરખાવવામાં આવેલ બે શબ્દોની વચ્ચે 'જયારે', 'જેવો', 'જેવી' જેવા શબ્દો આવે ત્યારે રૂપક અલંકાર બને.
જયારે ટીકા કે નિંદા કે વ્યંગના રૂપે પ્રશંસા કરાય ત્યારે અતિશયોક્તિ અલંકાર બને.
ઉપરોક્ત વિધાનોમાંથી કયું/ક્યાં વિધાનો સાચા છે.

માત્ર 1

માત્ર 4

2, 4

1, 3

માત્ર 1

માત્ર 4

2, 4

1, 3

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

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) A single phase motor connected to 400 V, 50 Hz supply takes 25 A at a power factor of 0.75 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.95 lagging.

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) In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

MGVCL Exam Paper (30-07-2021 Shift 3) Which among these components connects to physical equipments of the distribution system?

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)
A single phase motor connected to 400 V, 50 Hz supply takes 25 A at a power factor of 0.75 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.95 lagging.

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)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

MGVCL Exam Paper (30-07-2021 Shift 3)
Which among these components connects to physical equipments of the distribution system?