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Analog Electronics

Analog Electronics
The number of valence electrons in silicon atom are :

 2
 1
 3
 4

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Analog Electronics
What is the range of energy band gap of semiconductors ?

 1-3 ev
 0 ev
 10-15 ev
 14-15 ev

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Analog Electronics
The emitter electric current in a junction with normal bias

  is equal to ICBO.
  changes greatly by a small changes in collector bias voltage.
  is equal to the sum of IB and IC.
  is almost equal to the base current.

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Analog Electronics
In a MOSFET, the polarity of the inversion layer is the same as that of the

  minority carriers in the drain .
  majority carries in the substrate.
  majority carries in the source .
  charge on the gate electrode.

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

None of these
 0 eV
 15 eV
 1eV

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Analog Electronics
Assume that diode D1, D2 in figure are ideal diodes. The value of current is mcq-diagram

 0.5 mA.
 2 mA.
 0 mA.
 1 mA.

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