Power Electronics The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is 135 μs. 145 μs. 130 μs. 140 μs. 135 μs. 145 μs. 130 μs. 140 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac has ___________ semiconductor layers. Four Five Two Three Four Five Two Three ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is not a characteristic of UJT? Intrinsic stand off ratio Negative resistance Peak-point voltage Bilateral conduction Intrinsic stand off ratio Negative resistance Peak-point voltage Bilateral conduction ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum power loss occurs during all. delay time. rise time. spread time. all. delay time. rise time. spread time. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 60° to 180°. 30° to 180°. 30° to 150°. 60° to 120°. 60° to 180°. 30° to 180°. 30° to 150°. 60° to 120°. 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). of long period. neither (A) nor (B). of short duration. both (A) and (B). of long period. neither (A) nor (B). ANSWER DOWNLOAD EXAMIANS APP
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