First slide

Transistor

Question

The input signal given to a CE amplifier having a voltage gain of 150 is V_i = 2 cos (15t + 10⁰). The corresponding output signal is

Moderate

A

300 cos (15t + 190⁰)
B

300 cos (15t + 90⁰)
C

75 cos (15t + 10⁰)
D

2 cos (15t + 90⁰)

Solution

As voltage gain is 150 output voltage will be increased to 150 times. In CE configuration input and output phase difference will be $180^{0}$ . So correct output is $300 \cos (15 t + 190^{0})$

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