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Analog Electronics

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
The biasing circuit that gives best stability to Q point is

  emitter resistor biasing.
  potential divider biasing.
  base resistance biasing.
  feedback resistor biasing .

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Analog Electronics
Single phase, 230 V, 1 KW heater is connected acrose single phase 230 V, 50 Hz supply through a diode. The power delivered to the heater element

  500 W.
 None of above.
 1000 W.
 100 W.

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Analog Electronics
The base of an npn transistor is thin and

 metallic.
 heavily doped.
 doped by a pentavalent material.
  lightly doped.

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Analog Electronics
Common emitter current gain hFE of a BJT is

 Dependent on collector-emitter voltage.
 Always constant.
 Dependent on base -emitter voltage.
  Dependent on collector current.

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Analog Electronics
The current gain of a bipolar transistor drops at high frequencies because of

The early effect
High current effects in the base
Parasitic inductive elements
Transistor capacitances

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MORE MCQ ON Analog Electronics

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