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JEE Main 20172 April
Exam
JEE Main
Year
2017
Date
2 April
Subject
Physics
Chapter
Semiconductors

JEE Main 2017 · 2 April · Physics · Semiconductors

In a common emitter amplifier circuit using an n - p - n...

In a common emitter amplifier circuit using an n−p−nn - p - n transistor, the phase difference between the input and the output voltages will be:

Options

  1. A180°180 °
  2. B45°45 °
  3. C90°90 °
  4. D135°135 °

Correct answer

A. 180°180 °

Step-by-step solution

In a common emitter amplifier circuit, the input voltage must be forward biased and output voltage must be reversed biased.

So the input voltage must be out of phase of output voltage.

Therefore, the phase difference between the input and output voltage is 180°180 °.
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