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Analog Electronics

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

 3 A.
 10 A.
  3.1 A.
 3.33 mA.

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Analog Electronics
Feedback circuit in an oscillator can be accomplished by

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

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Analog Electronics
When a reverse bias is applied to gate of JFET the depletion region width

  is wider near the drain and tapers near source.
  is uniform in the channel.
  is wider near the source and tapers near the drain.
None of these

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Analog Electronics
The junction capacitance of linearly graded junction varies with the applied reverse bias, VR as

  (VR)- 1/2.
  (VR)- 1/3.
  (VR)1/2.
  (VR)- 1.

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Analog Electronics
When the source voltage increases in a zener regulator, which of these electric current remain approximately constant ?

  None of these.
  Zener current.
  Series current.
  Load current.

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Analog Electronics
The base - emitter voltage is usually

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

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