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Analog Electronics

Analog Electronics
Which process is used for adding impurity into a pure semiconductor material ?

None of these
 Doping
 Conducting
 Insulating

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Analog Electronics
If the current gain is unknown in an emitter-biased circuit, you cannot calculate the

 emitter voltage.
 collector current.
  base current.
 emitter current.

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Analog Electronics
Germanium has

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

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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.
  changes greatly by a small changes in collector bias voltage.
  is equal to ICBO.
  is almost equal to the base current.

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Analog Electronics
The Q-point in a voltage amplifier is selected in the middle of the active region because

  the circuit needs a small.
  the biasing circuit then need less number of resistors.
  it gives distortions less output.
  it gives better stability.

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Analog Electronics
The input signal for an instrumentation amplifier usually comes from

 a Wheatstone bridge.
 an inverting amplifier.
 a resistor.
 a differential amplifier.

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