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Analog Electronics

Analog Electronics
In a RC phase shift oscillator, the minimum number of R-C networks to be connected in cascade will be

 four.
 two.
 one.
 three.

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Analog Electronics
Increasing the collector supply voltage will increase

 collector current.
 emitter current.
None of these
 base current.

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Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 extrinsic
 intrinsic
 doping
None of these

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Analog Electronics
The power dissipated by a transistor approximately equals the collector current times

 base - emitter voltage.
 base supply voltage.
  collector - emitter voltage.
 0.7 V.

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Analog Electronics
A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ. At the frequency of 4KHZ,the o/p voltage will be

1v
2v
1.4v
2.8v

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Analog Electronics
Negative feedback in an amplifier

Reduces gain
Increase frequency &phase distortion
Increases noise
Reduces bandwidth

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