Exercise: Power Electronics

Questions for: Power Electronics

The number of layers in a Shockley diode are
A:
2
B:
3
C:
4
D:
2 or 3
Answer: C
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In a modified series inverter with two inductors and two capacitors, the load current
A:
has 2 parallel paths
B:
has only one parallel path
C:
can have three parallel paths
D:
has four parallel paths
Answer: A
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In a bridge inverter with single pulse width modulation
A:
the output frequency is equal to frequency of reference signal
B:
the output frequency is equal to frequency of control signal
C:
either (a) or (b)
D:
neither (a) nor (b)
Answer: A
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Which of the following is correct for a BJT?
A:
B:
C:
D:
Answer: A
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In a single phase half wave ac regulator feeding a resistive load, the rms load current
A:
is always positive
B:
may be positive or negative
C:
is always negative
D:
can be even zero
Answer: A
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