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Analog Electronics

Analog Electronics
Donors to a semiconductor material is

 Pentavalant
 Trivalant
 Tetravalant
 Divalant

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

  30 µA.
 3 mA.
 3 µA.
 150 µA.

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Analog Electronics
In a RC phase shift oscillator, the minimum number of R-C networks to be connected in cascade will be

 four.
 two.
 three.
 one.

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Analog Electronics
Most of the electrons in the base of an NPN transistor do not recombine because they

 must flow through the base.
  have a long lifetime.
 have a negative charge.
 flow out of the base.

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Analog Electronics
For audio frequency applications, the popular oscillator used is

 Phase shift oscillator
 Crystal oscillator
 Hartley oscillator
 Wien bridge oscillator

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Analog Electronics
The value of total collector electric current in a CB circuit is

  IC = βIE.
  IC = αIE - ICO.
  IC = αIE.
  IC = αIE + ICO.

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