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Analog Electronics

Analog Electronics
In an E only MOSFET, drain electric current starts only when VGS (th) is

  negative.
  zero.
  positive.
  greater than VGS (th).

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Analog Electronics
Generally, the gain of a transistor amplifier falls at high frequencies due to the

Coupling capacitor at the input
Internal Capacitance of the device
Skin effect
Coupling capacitor at the output

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Analog Electronics
If a transistor operates at the middle of the load line, a decrease in the base resistance will move the Q point

 down.
 off the load line.
 nowhere.
  up.

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Analog Electronics
The forbidden energy gap between valance band and conduction band in semiconductor material is about

 15 eV
 0 eV
 1eV
None of these

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Analog Electronics
Depending upon the switching recovery time and on state drop, the power diodes are types

  General purpose, fast recovery and schottly.
 None of these.
 General purpose, fast recovery.
 Fast recovery, Schottky.

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

 life time of the carriers
 recombination
 bound electrons
 drift velocity

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