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Analog Electronics

Analog Electronics
A LED produces light when

  forward biased.
None of these
  unbiased.
  reverse biased.

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Analog Electronics
Donors to a semiconductor material is

 Tetravalant
 Trivalant
 Divalant
 Pentavalant

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Analog Electronics
Silicon and Germanium are ________ elements.

 pentavalant
 hexavalant
 tetravalant
 trivalant

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Analog Electronics
If the base resistor has zero resistance, the transistor will probably be

  destroyed.
 saturated.
 in cutoff.
None of these

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Analog Electronics
Which is the pair of acceptor elements ?

 Phosphorous and aluminium
 Gallium and boron
 Antimony and indium
None of these

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Analog Electronics
The current gain of a pnp transistor is

 the collector current divided by the emitter current.
 the negative of the npn current gain.
 near zero.
 the ratio of collector current to emitter current.

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