Power Electronics Maximum power loss occurs during all. spread time. rise time. delay time. all. spread time. rise time. delay time. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device metal oxide varistor. snubber circuit. aluminium block. fast acting fuse. metal oxide varistor. snubber circuit. aluminium block. fast acting fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ Remains the same Is decreased Is increased None of these Remains the same Is decreased Is increased None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 70. 90. 60. 80. 70. 90. 60. 80. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 300 µs. 100 µs. 150 µs. 200 µs. 300 µs. 100 µs. 150 µs. 200 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum di / dt in a SCR is both A and C. directly proportional to Vm of supply voltage. inversely proportional to Vm of supply voltage. inversely proportional to L in the circuit. both A and C. directly proportional to Vm of supply voltage. inversely proportional to Vm of supply voltage. inversely proportional to L in the circuit. ANSWER DOWNLOAD EXAMIANS APP
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