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Analog Electronics

Analog Electronics
Energy gap of semiconductor is approx

 > 8 eV .
 0 eV.
 1 eV.
 5 - 8 eV.

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Analog Electronics
The most commonly used semiconductor is

 Germanium
 Sulphur
 Carbon
 Silicon

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Analog Electronics
What will happen if doping of an intrinsic semiconductor with pentavalent impurity atom ?

None of these
 Fermi level fall
 Fermi level not change
 Fermi level raises

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Analog Electronics
In a differential amplifier, the CMRR is limited mostly by the

  supply voltages .
  tolerance of the resistors.
  gain - bandwidth product.
  CMRR of the opamp.

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Analog Electronics
The barrier potential across each silicon depletion layer is

  0.7 V.
 0.3 V.
 0 V.
 1 V.

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Analog Electronics
Which of the following cannot actually move?

 Holes
 Ions
 All the above
 Electrons

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