MGVCL Exam Paper (30-07-2021 Shift 2)
The relation between electric intensity E, voltage applied V and the distance d between the plates of a parallel plate condenser is

E = Vx(d)²
E = V x d
E = V/d
E = V/(d)²

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MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase motor connected to 415 V, 50 Hz supply takes 30 A at a power factor of 0.7 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.9 lagging.

76.32 µF
96.32 µF
86.32 µF
66.32 µF

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MGVCL Exam Paper (30-07-2021 Shift 2)
The wind speed increases with height because of

reduction of drag effect of the earth surface
enhancement of drag effect on the earth surface
reduction in the gravitational force
reduction in lift effect of the air

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MGVCL Exam Paper (30-07-2021 Shift 2)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series opposing.

730 mH
932 mH
1135 mH
1270 mH

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