MGVCL Exam Paper (30-07-2021 Shift 1)
A given solar cell has the following specifications:
Open-circuit voltage, Voc: 0.7 V
Short-circuit current, Isc: 3.5 A
Short-circuit current, Isc: 3.5 A
Short-circuit current, Isc: 3.5 A
If the solar cell operates at maximum power point, calculate the efficiency.

15.70%
12.70%
13.70%
14.70%

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MGVCL Exam Paper (30-07-2021 Shift 1)
The expression for voltage regulation of a short transmission line for lagging power factor is given by: ___, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resistance and 'X' is the line reactance.

(IX cosφ_r - IR sinφ_r)/V_r
(IR cosφ_r - IX sinφ_r)/V_r
(IX cosφ_r + IR sinφ_r)/V_r
(IR cosφ_r + IX sinφ_r)/V_r

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MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

supplies power to as well as receives power from the grid as required
always supplies power to the grid
works only when the grid fails
always receives power from the grid

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