Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

The current gain of a transistor is the ratio of
A:
emitter current to base current
B:
emitter current to collector current
C:
collector current to base current
D:
collector current to emitter current
Answer: C
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The reverse saturation current in a semiconductor diode consists of
A:
avalanche current
B:
zener current
C:
minority carrier current
D:
minority carrier current and surface leakage current
Answer: D
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With increasing temperature, the electrical conductivity of metals
A:
increases
B:
decreases
C:
increases first and then decreases
D:
remains unaffected
Answer: B
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In a bipolar transistor which current is smallest
A:
collector current
B:
base current
C:
emitter current
D:
any of the three currents
Answer: B
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In an n channel JFET, VGS = VGS(off). Then
A:
ID is zero
B:
ID may be zero or positive
C:
ID is positive
D:
ID may be zero or negative
Answer: A
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