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Analog Electronics

Analog Electronics
The percentage voltage regulation of voltage supply providing 100 V unloaded and 95 V at full load is

  none of them.
  5 %.
  5.3 %.
  0.53 %.

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Analog Electronics
The common-mode voltage gain is

  equal to the voltage gain.
  greater than the voltage gain.
  smaller than the voltage gain.
None of these

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Analog Electronics
If the base resistor is very small, the transistor will operate in the

 active region.
 cutoff region.
  saturation region.
All of these

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Analog Electronics
To prevent a DC return between source and load, it is necessary to use

Inductor between source and load
Resistor between source and load
Capacitor between source and load
Either A or B

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Analog Electronics
An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are

fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz
fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz
fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz
fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz

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Analog Electronics
In the active region, the collector current is not changed significantly by

  collector resistance.
 base supply voltage.
 base current.
 current gain.

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