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Analog Electronics

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

 extrinsic
None of these
 doping
 intrinsic

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Analog Electronics
Suppose the base resistor is open. The Q point will be

 in the middle of the load line.
 at the upper end of the load line.
  at the lower end of the load line.
 off the load line.

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Analog Electronics
Darlington connection is achieved in 2 transistors by connecting

 both collector.
 both base.
 grounding both collector.
 both emitter.

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Analog Electronics
A voltage regulator is a circuit which

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

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Analog Electronics
The following relationship between α and β are correct except

  α = β / (1 - β).
  α = β / (1 + β).
  1 - α = 1 / (1 + β).
  β = α / (1 - α).

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Analog Electronics
Which are the mobile charge carriers present in semiconductor diode ?

 Holes
 Neutrons
 Both A & B
 Electrons

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