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Analog Electronics

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

 intrinsic
None of these
 extrinsic
 doping

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Analog Electronics
The effective channel length of a MOSFET in a saturation decreases with increase in

Drain voltage
Gate voltage
Source voltage
Body voltage

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Analog Electronics
If the emitter resistance decreases, the

 Q point stays where it is.
  Q point moves up.
 collector current decreases.
 current gain increases.

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Analog Electronics
Asource follower using an FET usually has a voltage gain which is

About -10
Greater than +100
Exactly unity but negative
Slightly less than unity but positive

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

  0.7 V.
 0 V.
 1 V.
 0.3 V.

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Analog Electronics
What will be the result if pentavalent impurity is added to pure germanium or silicon ?

 P-type semiconductor
 N-type semiconductor
None of these
 Intrinsic semiconductor

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