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

σ²/(2ε)
σ²/(4π)
σ/(4πε)
σ²/(2πε)

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider a solar PV plant with the following specific conditions:
Analysis period: 1 year
Measured average solar irradiation intensity in 1 year: 150 kWh/m²
Generator area of the PV plant: 10 m² Efficiency factor of the PV modules: 15%
Electrical energy actually exported by plant to grid: 135 kWh
Calculate the performance ratio.

50%
80%
60%
75%

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MGVCL Exam Paper (30-07-2021 Shift 3)
The short circuit current of a solar cell is

inversely proportional to radiation intensity
changes logarithmically with radiation
directly proportional to radiation intensity
constant and not affected by radiation

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