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Analog Electronics

Analog Electronics
In n type semiconductor elements of which group of periodic table is added as dopant

 group 3.
 group 4.
 group 2.
 group 5.

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Analog Electronics
A JFET can operate in

  depletion mode only.
  none of these.
  depletion and enhancement mode only.
  enhancement mode only.

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

  p - n junction.
  substrate.
  gate.
  channel.

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Analog Electronics
Assume that diode D1, D2 in figure are ideal diodes. The value of current is mcq-diagram

 2 mA.
 1 mA.
 0 mA.
 0.5 mA.

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Analog Electronics
The percentage voltage regulation of voltage supply providing 100 V unloaded and 95 V at full load is

  5.3 %.
  5 %.
  none of them.
  0.53 %.

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Analog Electronics
An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is

5KΩ
1/5KΩ
11KΩ
1/11KΩ

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