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Analog Electronics

Analog Electronics
The feedback factor of a Wien bridge oscillator using Op-Amp is

 1/2
 1/4
 1
 1/3

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Analog Electronics
When pn junction is reverse biased

 a small current flows through it because of minority carriers
 it offers a very high resistance
All of these
 the witdh of depletion layer increases

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Analog Electronics
A depletion MOSFET differs from a JFET in the sense that it has no

  p - n junction.
  gate.
  channel.
  substrate.

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

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

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Analog Electronics
The silicon transistor are more widely used than germanium transistors because

  they have smaller leakage current.
  they have larger electric current carrying capacity.
  they have smaller depletion layer.
  they have better ability to dissipate heat.

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Analog Electronics
A voltage regulator is a circuit which

  maintains constant DC output voltage inspite of the fluctu
  smoothed the AC variation in DC output voltage.
None of these
  converts the AC voltage to DC voltage.

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