Power Electronics Under over voltage condition impedance offered by the voltage clamping device is moderate. high. low. infinity. moderate. high. low. infinity. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Inversely proportional to supply voltage. Directly proportional to supply voltage. Directly proportional to inductance in the circuit. Both A and B. Inversely proportional to supply voltage. Directly proportional to supply voltage. Directly proportional to inductance in the circuit. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The function of snubber circuit connected across the SCR is to increase dV / dt. decrease di / dt. suppress dV / dt. decrease dV / dt. increase dV / dt. decrease di / dt. suppress dV / dt. decrease dV / dt. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics In a UJT, the p-type emitter is ___________ doped None of these Lightly Moderately Heavily None of these Lightly Moderately Heavily ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ None of these Is decreased Is increased Remains the same None of these Is decreased Is increased Remains the same ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ? Snubber circuit. CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). Snubber circuit. CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
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