Power Electronics Snubber circuit is used with SCR in parallel. in series. anti parallel. either series or parallel. in parallel. in series. anti parallel. either series or parallel. 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. 200 µs. 150 µs. 300 µs. 100 µs. 200 µs. 150 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Using equalizing circuit. Using CB and fuse. Use of snubber circuit. Using heat sink. Using equalizing circuit. Using CB and fuse. Use of snubber circuit. Using heat sink. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions Two None of these Four Three Two None of these Four Three ANSWER DOWNLOAD EXAMIANS APP
Power Electronics CB used for over current protection of thyristor operates when the fault current is of short duration. both (A) and (B). neither (A) nor (B). of long period. of short duration. both (A) and (B). neither (A) nor (B). of long period. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is not a power transistor? SITS. TRIAC. COOLMOS. IGBTs. SITS. TRIAC. COOLMOS. IGBTs. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS