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Analog Electronics

Analog Electronics
The number of orbiting electrons in germanium atom are :

 42
 32
 36
 28

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Analog Electronics
The amount of time between the creation and disappearance of a free electrons is called

 bound electrons
 life time of the carriers
 drift velocity
 recombination

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Analog Electronics
The base - emitter voltage is usually

 more than the base supply voltage.
 equal to the base supply voltage.
  less than the base supply voltage.
 none of these.

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Analog Electronics
Which of these is the best description of a zener diode?

  It is a constant electric current device.
  It is a constant voltage device.
  It works in the forward region.
  It is a rectifier diode.

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Analog Electronics
If the base resistor is open, what is the collect current?

 2 mA.
 10 mA.
 1 mA.
  0 mA.

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Analog Electronics
The power dissipated by a transistor approximately equals the collector current times

 base - emitter voltage.
  collector - emitter voltage.
 base supply voltage.
 0.7 V.

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