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Analog Electronics

Analog Electronics
The barrier potential across each silicon depletion layer is

  0.7 V.
 0.3 V.
 1 V.
 0 V.

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Analog Electronics
The fact that there are many free electrons in a transistor emitter region means the emitter is

 undoped.
 lightly doped.
None of these
  heavily doped.

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Analog Electronics
The leakage electric current of a pn junction is caused by

  majority carriers.
  barrier potential.
  chemical energy.
  heat energy.

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Analog Electronics
A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

25 Ω & 20 %
5 Ω & 16.7 %
5 Ω & 20 %
25 Ω & 16.7 %

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Analog Electronics
When the drain saturation electric current is less than IDSS a JFET acts like a

  battery.
  BJT.
  resistor.
  current source.

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

 0.1 V.
 1.7 V.
 2.1 V.
 0.7 V.

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