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Analog Electronics

Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 0.7 V.
 1.7 V.
 2.1 V.
 0.1 V.

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Analog Electronics
Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is

 supply voltage.
  0.
 a few tenths of a volt.
 1 V.

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Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 extrinsic
 doping
 intrinsic
None of these

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Analog Electronics
The input voltage to an emitter follower is usually

 equal to the supply voltage.
  less than the generator voltage.
 equal to the generator voltage.
 greater than the generator voltage.

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Analog Electronics
A schottky device is a

 Fast recovery device.
 Both B and C.
 Minority carrier device.
  Majority carrier device.

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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

11KΩ
1/5KΩ
5KΩ
1/11KΩ

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