When a power diode is conducting, the voltage drop across it is about I V 5 V 20

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Question
When a power diode is conducting, the voltage drop across it is about
Options
A. I V
B. 5 V
C. 20 V
D. 50 V

Correct Answer

I V

Power Electronics problems

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1. In a parallel inverter
Options
A. each thyristor is turned on twice during each cycle
B. each thyristor is turned on once during each cycle
C. each thyristor is turned on either once or twice in each load cycle
D. each thyristor may be turned on upto four times in each load cycle

7. In thermal ohm's law, temperature and power loss are analogous to
Options
A. V and I respectively of ohm's law
B. I and V respectively of ohm's law
C. R and V respectively of ohm's law
D. I and R respectively of ohm's law

9. In a 3 phase full converter, the instantaneous output voltage can have negative part if
Options
A. firing angle is less than 60�
B. firing angle is less than 90�
C. firing angle is more than 60�
D. firing angle is more than 90�

10. Which inverter circuit uses coupled inductors?
Options
A. Modified McMurray full bridge inverter
B. McMurray Bedford half bridge inverter
C. Modified McMurray Bedford half bridge inverter
D. Both (b) and (c)

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