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Analog Electronics

Analog Electronics
Semiconductor material is

 Trivalent
 Pentavalent
 Bilateral
 Tetravalent

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Analog Electronics
The positive part of the output signal in a transistor circuit starts clipping, if Q point of the circuit moves

  toward the cutoff point.
  none of these.
  toward the saturation point.
  toward the center of the load line.

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Analog Electronics
When the two input terminals of a differential amplifier are grounded

  an output error voltage usually exists.
  the base currents are equal.
  the collector currents are equal.
  the ac output voltage is zero.

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Analog Electronics
The electric current ICBO flows in the

  none of them.
  emitter and base leads.
  emitter and collector leads.
  collector and base leads.

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Analog Electronics
In the second approximation, the total voltage across the zener diode is the sum of the breakdown voltage and the voltage across the

  zener resistance.
  source.
  zener diode.
  series resistor.

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Analog Electronics
The emitter electric current in a junction with normal bias

  is equal to the sum of IB and IC.
  is almost equal to the base current.
  is equal to ICBO.
  changes greatly by a small changes in collector bias voltage.

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