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Analog Electronics

Analog Electronics
The current gain of a BJT is

gm /rπ
gm / r0
gm rπ
gm r0

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Analog Electronics
The common-mode voltage gain is

  greater than the voltage gain.
  smaller than the voltage gain.
  equal to the voltage gain.
None of these

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Analog Electronics
Electron mobility is defined as

None of these
 the movement of electrons
 Drift velocity per unit field
 Diffusion velocity per unit field

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Analog Electronics
Input impedance of MOSFET is

  less than that of FET and BJT.
  more than that of FET but less than BJT.
  less than of FET but more than BJT.
  more than that of FET and BJT.

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Analog Electronics
Feedback circuit in an oscillator can be accomplished by

 Inductive coupling between input and output
 Resistive coupling between input and output
 Any one or combinations of the above methods
 Capacitive coupling between input and output

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Analog Electronics
Acceptors impurities are of ________ material

 solid
 p-type
 Both A and B
 n-type

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