Amplifiers

Explanation of question 3

A sinusoidal signal is applied to a transistor operating in class A. As VBE increases, collector current and the output voltage would be respectively

  1. increasing, increasing
  2. increasing decreasing
  3. decreasing, increasing
  4. decreasing, decreasing

The answer is :- 2 VBE and collector current Ic are in phase VBE and output voltage are 180º out of phase.

 

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