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

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a test by Murray loop for ground fault on 600 m of cable having a resistance of 1.5 Ω/km, the faulty cable is looped with a sound cable of the same length and area of cross section. If the ratio of the other two arms of the testing network at balance is 3 : 1, find the distance of the fault from the testing end of cables.

300 m
100 m
400 m
200 m

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MGVCL Exam Paper (30-07-2021 Shift 2)
નીચે માંથી ક્યાં રુઢિપ્રયોગનો અર્થ 'છેતરવું' એવો થાય

આડા ઉતરવું
હથેળીમાં ચાંદ દેખાડવો
દસ મારવો
બે પાંદડે થવું

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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.

86.32 µF
66.32 µF
76.32 µF
96.32 µF

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MGVCL Exam Paper (30-07-2021 Shift 2)
____are long-term (hours-long) voltage sags caused by system overload.

Voltage surges
Voltage dips
Black outs
Brownouts

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