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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 Ge
 GaAs
 Si
 All the above

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

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

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Analog Electronics
The most commonly used transistor circuit arrangement is

  common emitter.
None of these
  common base.
  common collector.

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Analog Electronics
Which of the following cannot actually move?

 Ions
 Electrons
 Holes
 All the above

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Analog Electronics
What is the majority carriers in "N" type material ?

 Protons
 Holes
None of these
 Electrons

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Analog Electronics
The collector current is 1.5 mA. If the current gain is 50, the base current is

 3 mA.
 150 µA.
 3 µA.
  30 µA.

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