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Analog Electronics

Analog Electronics
The base-emitter voltage of the second approximation is

  0.7 V.
 0.3 V.
 0 V.
 1 V.

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Analog Electronics
When the JFET is no longer able to control the current, this point is called the

  saturated point.
  breakdown region.
  depletion region.
  pinch-off region.

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Analog Electronics
The following are the necessary requirements of an oscillator

 Both A and B
 Power stability
 Frequency stability
 Amplitude stability

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Analog Electronics
In a bipolar junction transistor the base region is made very thin so that

  recombination in base region is minimum.
  base can be easily biased.
  electric field gradient in base is high.
  base can be easily fabricated.

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Analog Electronics
Which of the following is not a sinusoidal oscillator?

 LC oscillator
 Relaxation oscillator
 Crystal oscillator
 RC phase shift oscillator

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

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

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