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Analog Electronics

Analog Electronics
If the base resistor has zero resistance, the transistor will probably be

  destroyed.
None of these
 saturated.
 in cutoff.

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Analog Electronics
An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is

5KΩ
1/11KΩ
1/5KΩ
11KΩ

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Analog Electronics
An ideal voltage regulator has a voltage regulation of

  0.
  100.
  50.
  1.

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Analog Electronics
In an NPN transistor, the majority carriers in the emitter are

  free electrons.
 neither.
 both.
 holes.

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Analog Electronics
The base-emitter voltage of the second approximation is

 0 V.
 1 V.
  0.7 V.
 0.3 V.

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Analog Electronics
If temperature increases then conductivity of a semiconductor is ...................

 Increases
None of these
 Decreases
 Constant

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