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Analog Electronics

Analog Electronics
Semiconductor Diode is used as

 a modulator
 a rectifier
 an oscillator
 an amplifier

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Analog Electronics
Three difference Q points are shown on a load line. The upper Q point represents the

 intermediate current gain.
 cutoff point.
  maximum current gain.
 minimum current gain.

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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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Analog Electronics
At the unity-gain frequency, the open-loop voltage gain is

  1.
  zero.
  very large
  AV(mid).

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Analog Electronics
A 3 - phase diode bridge rectifier is fed from a 400 V rms, 50 Hz, 3 phase AC source. If the load is purely resistive, then peak instantaneous output voltage is equal to

 400 V.
 400√ (2/3) V.
 400 / √ 3 V.
 400√ 2 V.

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Analog Electronics
The voltage gain of a loaded differential amp is

  large than the unloaded voltage gain.
  equal to RC / re.
  impossible to determine.
  smaller than the unloaded voltage gain.

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MORE MCQ ON Analog Electronics

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