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Analog Electronics

Analog Electronics
Silicon and Germanium are ________ elements.

 trivalant
 tetravalant
 pentavalant
 hexavalant

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Analog Electronics
A 741 C has

All of these
  an input impedance of 2 MΩ.
  an output impedance of 75 Ω.
  a voltage gain of 100,000.

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Analog Electronics
When the current gain increases from 50 to 300 in an emitter-biased circuit, the collector current

 decreases by a factor of 6.
 increases by a factor of 6.
  remains almost the same.
 is zero.

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Analog Electronics
The leakage electric current ICBO flows in

  the base and collector leads.
  the emitter and collector leads.
  the emitter, base and collector leads.
  the emitter and base leads.

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Analog Electronics
A common - mode signal is applied to

  the top of the tail resistor.
  both inputs.
  the inverting input.
  the non - inverting input.

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Analog Electronics
In a loaded zener regulator, which is the largest current?

  Series current.
  Zener current.
None of these
  Load current.

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