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Analog Electronics

Analog Electronics
Which types of device is the diode ?

None of these
 Semiconductor
 Insulator
 Conductor

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Analog Electronics
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

102dB
49dB
51dB
98dB

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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 voltage regulator is a circuit which

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

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Analog Electronics
Acceptor type impurities

All of these
 have three valance electrons
 Create excess holes
 are used to make P-type semiconductor

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Analog Electronics
The extremely high input impedance of a MOSFET is primarily due to the

  absence of its channel.
  extremely small leakage electric current of its gate capacitor.
  depletion of electric current carriers.
  negative gate-source voltage.

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