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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 Si
 Ge
 GaAs
 All the above

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Analog Electronics
The forbidden energy gap between valance band and conduction band in semiconductor material is about

None of these
 15 eV
 0 eV
 1eV

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Analog Electronics
In a N-type semiconductor material holes are ......................

 Majority charge carriers
 Minority charge carriers
 High charge carriers
 Low charge carriers

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Analog Electronics
In an NPN transistor, the majority carriers in the emitter are

 both.
 neither.
  free electrons.
 holes.

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Analog Electronics
A 741 C has

  an output impedance of 75 Ω.
  a voltage gain of 100,000.
  an input impedance of 2 MΩ.
All of these

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Analog Electronics
Electron mobility is defined as

 the movement of electrons
None of these
 Diffusion velocity per unit field
 Drift velocity per unit field

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