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Analog Electronics

Analog Electronics
The 741 C has a unity - gain frequency of

  1 MHz.
  10 Hz.
  15 MHz.
  20 Hz.

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Analog Electronics
Which process is used for adding impurity into a pure semiconductor material ?

 Conducting
 Doping
None of these
 Insulating

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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
The early effect in a bipolar junction transistor is caused by

Fast turn-off
Fast turn-on
Large collector-base reverse bias
Large emitter-base forward bias

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Analog Electronics
A 741 C has

  an input impedance of 2 MΩ.
All of these
  an output impedance of 75 Ω.
  a voltage gain of 100,000.

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Analog Electronics
The fact that there are many free electrons in a transistor emitter region means the emitter is

  heavily doped.
 undoped.
 lightly doped.
None of these

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