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Analog Electronics

Analog Electronics
The majority carriers in the emitter of a PNP transistor are

 free electrons.
 trivalent atoms.
 pentavalent atoms.
 holes.

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Analog Electronics
If the series resistance increases in an unloaded zener regulator, the zener current

  decreases.
  increases.
  equals the voltage divided by the resistance.
  stays the same.

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Analog Electronics
When will be the P-N junction is formed ?

 Two opposite doped materials
None of these
 In reverse biased region
 In depletion region

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Analog Electronics
The current gain of a BJT is

gm rπ
gm r0
gm / r0
gm /rπ

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Analog Electronics
Avalanche breakdown in a diode occurs when

  reverse bias exceeds a certain value.
  forward electric current exceeds certain value.
None of these
  potential barrier is reduced to zero.

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Analog Electronics
The conduction loss verses device current characteristics of power MOSFET in best approximately by

 an exponentially decaying function.
 a straight line.
 a rectangular hyperbola.
 a parabola.

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