Power Electronics SCR will be turned off when anode current is < latching current but greater than holding current and gate signal is present. less than holding current. both (A) and (B). < latching current but greater than holding current and gate signal is 0. < latching current but greater than holding current and gate signal is present. less than holding current. both (A) and (B). < latching current but greater than holding current and gate signal is 0. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant Transistor SCR UJT None of these Transistor SCR UJT None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in SCR to protect from high dV / dt? Circuit breaker. Fuse. Equalizing circuit. Snubber circuit. Circuit breaker. Fuse. Equalizing circuit. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region None of these Negative resistance Saturation Cut-off None of these Negative resistance Saturation Cut-off ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Materials used in heat sink should have high melting point. high thermal conductivity. All of these. large surface area. high melting point. high thermal conductivity. All of these. large surface area. 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. 200 µs. 150 µs. 300 µs. 100 µs. 200 µs. 150 µs. 300 µs. 100 µs. ANSWER DOWNLOAD EXAMIANS APP
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