A. anode voltage drops from 10 % of its initial value to zero
B. anode current rises from 90 % to its final value
C. both (A) and (B)
D. anode current rises from 10 % to 90 % of its final value
Related Mcqs:
- Delay time is defined by the interval when_______________?
A. gate current increases from 90 % to 100 % of its final value
B. anode current reaches 10 % from forward leakage current
C. anode voltage drops from 100 % to 90 % of its actual value
D. all of these - Rise time is defined by the interval when____________?
A. gate current rises from 90 % to 100 % of it final value
B. anode voltage drops from 90 % to 10 % of its initial value
C. anode current rises 10 % to 90 % of its final value
D. both B and C - During which time maximum conduction spreading take place in the thyristor during turn ON?
A. Delay time
B. Spread time
C. Rise time
D. Same for every case - During reverse recovery time__________________?
A. charge carrier of junction J2 recombined
B. charge carrier of junction J1 is swept out
C. charge carrier of junction J3 is swept out
D. both B and C - During gate recovery time_____________?
A. charge carriers of J2 junction recombined
B. charge carriers of J2 junction is swept out
C. charge carrier of J1 junction removed
D. charge carriers of J3 junction is removed - In a single phase full wave rectifier, during blocking state the pea inverse voltage of diode is______________?
A. V m
B. 2 V m
C. V m / 2
D. 4 V m - During the commutation period in 3 phase converter, overlap time is_____________?
A. Dependent on the load current
B. Dependent on the voltage
C. Dependent on both the load current and load voltage behind the short circuit current
D. Independent on both the load current and load voltage - During the commutation period in 3 phase converter, overlap time is____________?
A. Dependent on the load current
B. Dependent on the voltage
C. Dependent on both the load current and load voltage behind the short circuit current
D. Independent on both the load current and load voltage - What is used to protect the SCR from over current ________________?
A. CB and fuse.
B. Heat sink.
C. Snubber circuit.
D. Voltage clamping device. - The power demand can be estimated approximately by____________?
A. Load survey method
B. Mathematical method
C. Statistical method
D. Economic parameters
