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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 Ge
 All the above
 GaAs
 Si

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Analog Electronics
Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is

 a few tenths of a volt.
 1 V.
  0.
 supply voltage.

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Analog Electronics
When the two input terminals of a differential amplifier are grounded

  the ac output voltage is zero.
  the base currents are equal.
  an output error voltage usually exists.
  the collector currents are equal.

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Analog Electronics
A schottky device is a

  Majority carrier device.
 Fast recovery device.
 Both B and C.
 Minority carrier device.

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

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

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Analog Electronics
The diffusion capacitance of a forward biased P+N junction diode with a steady electric current I depends on

  mean life time of the electrons.
  mean life time of the holes.
  width of the depleted region.
  junction area.

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