Analog Electronics
Avalanche breakdown in a diode occurs when

  reverse bias exceeds a certain value.
  potential barrier is reduced to zero.
  forward electric current exceeds certain value.
None of these

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Analog Electronics
Which of the following statements is false?

A push pull output transformer has a centre-tapped primary
Push pull signals are equal and opposite in phase
All of these
Class AB operation cannot be used for a push pull audio power output phase

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Analog Electronics
The magnitude of electric current ICBO

  depends largely upon the emitter doping.
  is generally greater in silicon than in germanium transistor.
  increases with the increase in temperature.
  depends largely upon emitter-base junction base potential.

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