Modern Physics 6 Question 16

18. In a common emitter amplifier circuit using an $n-p-n$ transistor, the phase difference between the input and the output voltages will be

(2017 Main)

(a) $90^{\circ}$

(b) $135^{\circ}$

(c) $180^{\circ}$

(d) $45^{\circ}$

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Solution:

In a CE n-p-n transistor amplifier, output is $180^{\circ}$ out of phase with input.



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