Power Electronics During reverse recovery time charge carrier of junction J1 is swept out. charge carrier of junction J3 is swept out. both B and C. charge carrier of junction J2 recombined. charge carrier of junction J1 is swept out. charge carrier of junction J3 is swept out. both B and C. charge carrier of junction J2 recombined. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 600 V/µs. 1200 V/µs. 1000 V/µs. 800 V/µs. 600 V/µs. 1200 V/µs. 1000 V/µs. 800 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect a thyristor from high di / dt conditions? Voltage clamping device. Fuse. Snubber circuit. Inductor. Voltage clamping device. Fuse. Snubber circuit. Inductor. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Gate circuit or triggering circuit of a thyristor is may be low power or high power circuit. high power circuit. lower power circuit. magnetic circuit. may be low power or high power circuit. high power circuit. lower power circuit. magnetic circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ Is increased None of these Remains the same Is decreased Is increased None of these Remains the same Is decreased ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage. Equal to Less than More than None of these Equal to Less than More than None of these ANSWER DOWNLOAD EXAMIANS APP
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