MGVCL Exam Paper (30-07-2021 Shift 2)
જે ક્રિયા દર્શાવે પણ વાક્યનો અર્થ પૂર્ણ કરે એ એને ____કહેવાય. - આપેલ વિકલ્પોમાંથી યોગ્યનું ચયન કરી વાક્ય પૂર્ણ કરો

ક્રિયા-વિભક્તિ
વિભક્તિ
કૃદંત
નીપાત

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MGVCL Exam Paper (30-07-2021 Shift 2)
The expression for voltage regulation of a short transmission line for leading power factor is given by: ____, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resitance and 'X' is the line reactance.

(IXcosφ_r + IRsinφ_r)/V_r
(IRcosφ_r + IXsinφ_r)/V_r
(IRcosφ_r - IXsinφ_r)/V_r
(IXcosφ_r - IRsinφ_r)/V_r

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MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit of figure, the switch is closed to position-1 for a long time. At t = 0 the switch position is changed from postion-1 to postion-2. Find an expression for the current i(t).

i(t) = (E/R) sin[1/√(LC)]t A
i(t) = (E/R) cos[1/√(LC)]t A
i(t) = (E/R) cos√(LC) t A
i(t) = (E/R) sin√(LC) t A

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MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

inserting the stabilizing resistance in series with the relay
controlling field exciter
inserting suitable resistance in neutral grounding circuit
using higher rating CTs

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