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Analog Electronics

Analog Electronics
The gate controls

  the gate voltage.
  the width of the channel.
  the drain current.
  all of them.

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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

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

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Analog Electronics
Depletion region of a p-n junction is formed

 During Heating
 During Reverse bias
 During Forward bias
 During Manufacturing

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Analog Electronics
When a reverse bias is applied to a diode, it will

  raise the potential barrier.
  increases the majority carrier an electric current greatly.
  lower the potential barrier.
  none of these.

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

None of these
 saturated.
  destroyed.
 in cutoff.

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Analog Electronics
A zener diode

  has a constant voltage in the breakdown region.
  is a battery.
  has a barrier potential of 1 V.
  is forward biased.

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