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Analog Electronics

Analog Electronics
At the unity-gain frequency, the open-loop voltage gain is

  1.
  AV(mid).
  very large
  zero.

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Analog Electronics
MOSFET requires

 A large input current.
 A large input current and high voltage.
  Only small input current.
 None of these.

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Analog Electronics
If=0.98, Ico=6µA and Iβ=100µA for a transistor,then the value of Ic will be

4.6mA
3.2mA
2.3mA
5.2mA

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Analog Electronics
A zener diode voltage regulator has load requirement of 12 V and 2 Amp. The zener diode's minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is maximum efficiency of circuit?

 52.8 %.
 34.3 %.
 45.5 %.
 66.3 %.

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Analog Electronics
In the diode equation, the voltage equivalent of temperature

  T / 11600.
  T × 11600.
  11600 / T2.
  11600 / T.

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Analog Electronics
Most of the electrons in the base of an NPN transistor flow

  into the collector.
 out of the base lead.
 into the emitter.
 into the base supply.

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