MGVCL Exam Paper (30-07-2021 Shift 2)
A circular loop has its radius increasing at a rate of 2 m/s. The loop is placed perpendicular to a constant magnetic field of 0.1 Wb/m². When the radius of the loop is 2 m, the emf induced in the loop will be

0.2π V
zero
0.4π V
0.8π V

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MGVCL Exam Paper (30-07-2021 Shift 2)
શિક્ષકે વિદ્યાર્થીને વાર્તા કહી'
1. વાક્ય અક્મર્ક છે.
2. વાક્ય દ્રીકર્મક છે.
3. વાક્યમાં વિદ્યાર્થીને 'પ્રધાન કર્મ' છે અને વાર્તા 'ગૌણ કર્મ' છે.
4.વાક્યમાં વાર્તાને 'પ્રધાન કર્મ' છે અને વિધાથીને 'ગૌણ કર્મ' છે

2,3
1,3
1,3
2,4

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MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit of figure, the switch is closed to position-1 for a long time. At t = 0 the switch position is changed from postion-1 to postion-2. Find an expression for the current i(t).

i(t) = (E/R) sin√(LC) t A
i(t) = (E/R) sin[1/√(LC)]t A
i(t) = (E/R) cos√(LC) t A
i(t) = (E/R) cos[1/√(LC)]t A

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of these is not a monitoring and diagnostic test for transformer oil?

Volatility Level Analysis
Furanic Compound Analysis
Dissolved Gas Analysis
Dissolved Metals Analysis

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