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

ring main
double end fed, single feeder
single end fed, parallel feeder
single end fed, single feeder

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MGVCL Exam Paper (30-07-2021 Shift 3)
In a series RLC circuit, the supply voltage is 230 V at 50 Hz. The resonant current is 2 A at the resonant frequency of 50 Hz. Under the resonant condition, the voltage across the capacitor is measured to be equal to 460 V. What are the values of L and C?

0.73 mH and 13.85 pF
0.53 H and 15.83 pF
0.73 H and 13.85 pF
0.53 mH and 15.83 pF

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MGVCL Exam Paper (30-07-2021 Shift 3)
A conductor having surface density is embedded in a dielectric medium of permittivity. The electric field in the medium is E. If it is known that the pressure p on the conductor surface is equal to the electric energy density in the medium, then p (in SI unit)is given by

σ/(4πε)
σ²/(2πε)
σ²/(4π)
σ²/(2ε)

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