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Analog Electronics

Analog Electronics
Which of the following cannot actually move?

 Electrons
 Holes
 All the above
 Ions

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Analog Electronics
The voltage follower has a

  closed - loop bandwidth of zero.
  large closed - loop output impedance.
  small open - loop voltage gain.
  closed - loop voltage gain of unity.

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Analog Electronics
If the base current is 100 mA and the current gain is 30, the emitter current is

 10 A.
 3 A.
 3.33 mA.
  3.1 A.

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Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 extrinsic
 doping
 intrinsic
None of these

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Analog Electronics
Which is the conversion of current done by diode ?

 DC to AC
 AC to DC
 DC to DC
None of these

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Analog Electronics
The gate controls

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

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