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Analog Electronics

Analog Electronics
Example of donor atom is

 Germinium
 Antimony
 Both A and B
 Silicon

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Analog Electronics
If the emitter resistor is open, the collector voltage is

 low.
  high.
 unknown.
 unchanged.

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Analog Electronics
In a p⁺n junction diode under reverse bias , the magnitude of electric field is maximum at

The p⁺n junction
The edge of the depletion region on the p-side
The edge of the depletion region on the n-side
The center of the depletion region on the n-side

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Analog Electronics
A voltage regulator is a circuit which

None of these
  maintains constant DC output voltage inspite of the fluctu
  smoothed the AC variation in DC output voltage.
  converts the AC voltage to DC voltage.

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Analog Electronics
The current gain of a pnp transistor is

 the ratio of collector current to emitter current.
 the negative of the npn current gain.
 the collector current divided by the emitter current.
 near zero.

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Analog Electronics
N-type extrinsic semiconductor is obtained by adding

All of these
 trivalent impurity
 pentavalent impurity
 tetravalent impurity

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MORE MCQ ON Analog Electronics

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