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Analog Electronics

Analog Electronics
Increasing the collector supply voltage will increase

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

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Analog Electronics
Why holes are not created in a metal ?

 The conduction band and valance band are overlapped
 The forbidden band is missing
None of these
 Both 1 & 2

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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

51dB
49dB
98dB
102dB

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Analog Electronics
Doping in a semiconductor increases which quantity

 Resistance
 Inductance
 None
 Conductance

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Analog Electronics
If the emitter resistance decreases, the

 collector current decreases.
 current gain increases.
  Q point moves up.
 Q point stays where it is.

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Analog Electronics
When pn junction is reverse biased

 a small current flows through it because of minority carriers
 it offers a very high resistance
All of these
 the witdh of depletion layer increases

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MORE MCQ ON Analog Electronics

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