. The input signal given to a a CE amplifier having
a voltage gain of 150 is Vi = 2 cos (15 t + pi3) . The corresponding output signal will be
A: 300 cos (15 t + 4pi3)
B: 300 cos (15 t + pi3)
C: 75 cos (15 t + 2pi3)
D: 2 cos (15 t + 5pi6)
Best Answer
Explanation:
The input signal of CE amplifier Vi=2cos(15t+π3)
The voltage gain 150=V0/Vi
So the output voltage will be
Vo=150×2cos(15t+π3)
Vo=300cos(15t+π3)
The phase difference is
So the output voltage Vo=300cos(15t+π+π3)
⇒Vo=300cos(15t+4π/3)
Final Answer:
The corresponding output signal will be Vo=300cos(15t+4π/3).Hence option (A) is correct.
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