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Analog Electronics

Analog Electronics
An opamp has a voltage gain of 200,000. If the output voltage is 1 V, the input voltage is

  1 V.
  2 micro V.
  10 V.
  5 5 micro V.

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Analog Electronics
Conduction electrons have more mobility than holes because they

None of these
 need less energy to move them
 are free
 have negative charge

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

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

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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 V.
 400 / √ 3 V.
 400√ (2/3) V.

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Analog Electronics
In a pnp transistor, the major carriers in the emitter are

 neither.
 both.
 free electrons.
  holes.

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Analog Electronics
The emitter of the transistor is doped

  heavily.
  moderately.
  lightly.
  none of these

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