Power Electronics Power electronics essentially deals with control of a.c. power at ___________. Frequencies above 20 kHz Frequencies above 1000 kHz Frequencies less than 10 Hz 50 Hz frequency Frequencies above 20 kHz Frequencies above 1000 kHz Frequencies less than 10 Hz 50 Hz frequency ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.002 A. 0.009 A. 0.004 A. 0.01 A. 0.002 A. 0.009 A. 0.004 A. 0.01 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. None of these Extremely low High Low None of these Extremely low High Low ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor is nothing but a Controlled transistor. Amplifier with large current gain. Amplifier with higher gain. Controlled switch. Controlled transistor. Amplifier with large current gain. Amplifier with higher gain. Controlled switch. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics In reverse blocking mode of a thyristor junction J1 and J2 is in forward bias and J3 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. junction J3 is in forward bias and J1, J2 in reverse bias. junction J1, J3 is in reverse bias and J2 is in forward bias. junction J1 and J2 is in forward bias and J3 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. junction J3 is in forward bias and J1, J2 in reverse bias. junction J1, J3 is in reverse bias and J2 is in forward bias. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum di / dt in a SCR is directly proportional to Vm of supply voltage. inversely proportional to Vm of supply voltage. both A and C. inversely proportional to L in the circuit. directly proportional to Vm of supply voltage. inversely proportional to Vm of supply voltage. both A and C. inversely proportional to L in the circuit. ANSWER DOWNLOAD EXAMIANS APP
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