Power Electronics Materials used in heat sink should have high thermal conductivity. large surface area. high melting point. All of these. high thermal conductivity. large surface area. high melting point. All of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The latching current of SCR is 20 mA. Its holding current will be 23 mA. 10 mA. 40 mA. 60 mA. 23 mA. 10 mA. 40 mA. 60 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is 76.3 %. 90.9 %. 83.3 %. 91.6 %. 76.3 %. 90.9 %. 83.3 %. 91.6 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Mechanical Bidirectional None of these Unidirectional Mechanical Bidirectional None of these Unidirectional ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region Negative resistance None of these Cut-off Saturation Negative resistance None of these Cut-off Saturation ANSWER DOWNLOAD EXAMIANS APP
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