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.
