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Analog Electronics

Analog Electronics
A LED produces light when

  unbiased.
None of these
  reverse biased.
  forward biased.

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Analog Electronics
Energy gap of semiconductor is approx

 0 eV.
 > 8 eV .
 5 - 8 eV.
 1 eV.

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Analog Electronics
If the base resistor is open, what is the collect current?

 1 mA.
  0 mA.
 2 mA.
 10 mA.

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Analog Electronics
MOSFET uses the electric field of

  barrier potential of p-n junction to control the channel current.
  none of these.
  gate capacitance to control the channel current.
  both (A) and (B).

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Analog Electronics
The expression for frequency of oscillations of a RC phase shift oscillator is

 f = 1 / (2π RC√6)
None of these
 f = 1 / (2π√R(C1 + C2))
 f = 1 / (2π√RC)

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Analog Electronics
If the series resistance increases in an unloaded zener regulator, the zener current

  stays the same.
  increases.
  equals the voltage divided by the resistance.
  decreases.

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MORE MCQ ON Analog Electronics

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