Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

The network shown in the figure represents a
A:
band pass filter
B:
low pass filter
C:
high pass filter
D:
band stop filter
Answer: A
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Figure shows the terminals of a transistor in plastic package TO 18. Then
A:
terminals 1, 2, 3 are emitter, collector, base respectively
B:
terminals 1, 2, 3 are emitter, base, collector respectively
C:
terminals 1, 2, 3 are base, emitter collector, respectively
D:
terminals 1, 2, 3 are collector, emitter, base respectively
Answer: B
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If too large current passes through the diode
A:
all electrons will leave
B:
all holes will freeze
C:
excessive heat may damage the diode
D:
diode will emit light
Answer: C
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The forbidden energy gap between the valence band and conduction band will be least in case of
A:
metals
B:
semiconductors
C:
insulators
D:
all of the above
Answer: A
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Piezoelectric quartz crystal resonators find application where
A:
signal amplification is required
B:
rectification of the signal is required
C:
signal frequency control is required
D:
modulation of signal is required
Answer: B
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