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Analog Electronics

Analog Electronics
The gate controls

  the gate voltage.
  the drain current.
  all of them.
  the width of the channel.

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Analog Electronics
Which of the following is Pentavalent impurity?

 antimony
 indium
 boron
 gallium

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

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

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Analog Electronics
Voltage controlled oscillators are used commonly in

 Pulse Modulators Frequency Modulators Phase Clocked loops
 All the above
 Frequency Modulators
 Phase Clocked loops

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Analog Electronics
The expression for frequency of oscillations of a RC phase shift oscillator is

None of these
 f = 1 / (2π√RC)
 f = 1 / (2π√R(C1 + C2))
 f = 1 / (2π RC√6)

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Analog Electronics
A differential amplifier is invariably used in the i/p stage of all OP-amps.This is dome basically to provide the OP-amps with a very high

Bandwidth
Slew rate
CMRR
Open-loop gain

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