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Analog Electronics

Analog Electronics
A LED produces light when

  reverse biased.
None of these
  unbiased.
  forward biased.

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Analog Electronics
Germanium has

 ionic bond.
 covalent bond.
 molecular bond.
 metallic bond.

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Analog Electronics
When a reverse bias is applied to gate of JFET the depletion region width

  is uniform in the channel.
None of these
  is wider near the source and tapers near the drain.
  is wider near the drain and tapers near source.

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Analog Electronics
When testing an npn transistor using an ohmmeter, the collector-emitter resistance will be low when

 the emitter is positive in respect to the collector.
 the transistor is normal.
  the transistor is defective.
 the collector is positive in respect to the emitter.

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Analog Electronics
A zener diode

  is forward biased.
  has a barrier potential of 1 V.
  has a constant voltage in the breakdown region.
  is a battery.

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Analog Electronics
In a rectifier circuit, the diode converts

 alternating voltage to direct current.
 both (A) and (C) options are connect.
 alternating voltage to direct voltage.
 alternating current to direct voltage.

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