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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 Ge
 Si
 GaAs
 All the above

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

 1 mA.
 0 mA.
 2 mA.
 0.5 mA.

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Analog Electronics
When pn junction is reverse biased

 a small current flows through it because of minority carriers
All of these
 the witdh of depletion layer increases
 it offers a very high resistance

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Analog Electronics
In a pnp transistor, the major carriers in the emitter are

 neither.
 both.
 free electrons.
  holes.

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Analog Electronics
MOSFET uses the electric field of

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

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Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 2.1 V.
 0.1 V.
 1.7 V.
 0.7 V.

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