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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 All the above
 Ge
 Si
 GaAs

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Analog Electronics
Which of the following transistor configuration circuit is much less temperature dependent ?

  Common emitter.
None of these
  Common collector.
  Common base.

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Analog Electronics
In a transistor leakage current mainly depends on

Doping of base
Rating of transistor
Temperature
Size of emitter

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Analog Electronics
Under normal reverse bias voltage applied to diode, the reverse electric current in Si diode

  100 mA.
  order of micro A.
  none of them.
  1000 micro A.

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Analog Electronics
In a differential amplifier, the CMRR is limited mostly by the

  tolerance of the resistors.
  supply voltages .
  gain - bandwidth product.
  CMRR of the opamp.

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Analog Electronics
The β of a transistor is the ratio of the

 base current to collector current.
 collect current to emitter current.
  collect current to base current.
 emitter current to collector current.

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