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 Which of the following is used in heat sink? Aluminium. Silver. Iron. Carbon. Aluminium. Silver. Iron. Carbon. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics By which one of the following we can measure the reliability of a string? Derating factor. String efficient. Factor of safety. Reliability factor. Derating factor. String efficient. Factor of safety. Reliability factor. 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 increased Is decreased None of these Remains the same Is increased Is decreased None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Mechanical Unidirectional None of these Bidirectional Mechanical Unidirectional None of these Bidirectional ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3.2 µs 3.3 µs 3.1 µs 3 µs. 3.2 µs 3.3 µs 3.1 µs 3 µs. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS