Exercise: Power Electronics

Questions for: Power Electronics

A single phase converter is fed by a source having an inductance L. If load current is I0, the decrease in output voltage due to overlap is
A:
B:
C:
D:
Answer: C
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For an illumination control circuit it is advisable to use a matched TRIAC-DIAC pair.
A:
True
B:
False
C:
D:
Answer: A
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In a controlled rectifier a freewheeling diode is necessary if the load is
A:
inductive
B:
resistive
C:
capacitive
D:
any of the above
Answer: A
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Thyristors connected in series need static and dynamic stabilizing circuits.
A:
True
B:
False
C:
D:
Answer: A
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In the basic series inverter circuit, the source current has
A:
low harmonic content
B:
high harmonic content
C:
low or high harmonic content depending on firing angle
D:
zero harmonic content
Answer: B
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