. 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.

 

Talk to Our counsellor