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Analog Electronics

Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 intrinsic
None of these
 doping
 extrinsic

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

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

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Analog Electronics
The β of a transistor may be determined directly from the curve plotted between

  VCE and IE for constant IB.
  VCE and IC for constant IE.
  VBE and IE for constant VCE.
  VCE and IC for constant IB.

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Analog Electronics
For a diode, reverse recovery time is defined as the time between the instant diode current becomes zero and the instant reverse recovery current decays to

 10% of reverse peak current.
 15% of reverse peak current.
 0.
  25% of reverse peak current.

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Analog Electronics
A diode (P-N junction) has two terminals. The P-terminal is known as

 Cathode
 Anode
 None of these
 Either anode or cathode

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Analog Electronics
Increasing the collector supply voltage will increase

None of these
 base current.
 collector current.
 emitter current.

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