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Analog Electronics

Analog Electronics
The base-emitter voltage of the second approximation is

 0 V.
 1 V.
 0.3 V.
  0.7 V.

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Analog Electronics
Most of the electrons in the base of an NPN transistor do not recombine because they

 must flow through the base.
  have a long lifetime.
 have a negative charge.
 flow out of the base.

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Analog Electronics
An Op-Amp comparator circuit employs

 -ve feedback.
 both B and C.
 no feedback.
 +ve feedback.

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Analog Electronics
If the collector resistor is open, the collector voltage is

  low.
 unchanged.
 high.
 unknown.

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Analog Electronics
The opamp can amplify

  DC signals only.
  AC signals only.
  both AC and DC signals.
  neither AC not DC signals.

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Analog Electronics
A pn junction/Diode is a/an

 Linear component
None of these
 Unidirectional Component
 Bidirectional component

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