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Analog Electronics

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 barrier potential across each silicon depletion layer is

 0.3 V.
  0.7 V.
 0 V.
 1 V.

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Analog Electronics
The common-mode voltage gain is

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

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Analog Electronics
In the diode equation, the voltage equivalent of temperature

  11600 / T2.
  11600 / T.
  T × 11600.
  T / 11600.

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Analog Electronics
The encapsulation of transistor is necessary for

Preventing photo-emission effects
Preventing radio interference
Avoiding loss of free electrons
Mechanical ruggedness

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Analog Electronics
A zener diode voltage regulator has load requirement of 12 V and 2 Amp. The zener diode's minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is maximum efficiency of circuit?

 52.8 %.
 34.3 %.
 66.3 %.
 45.5 %.

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