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The input signal given to a CE amplifier having a voltage gain of 150 is
Vi = 2 cos 
15t + π 
. 3
The corresponding output signal will be :
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75 cos 15t + 2π . 3 -
2 cos 15t + 5π . 6 -
300 cos 15t + 4π . 3 -
300 cos 15t + π . 3
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Correct Option: C
Given : Voltage gain AV = 150
| Vi = 2cos | | 15t + | | ; Vo = ? | 3 |
For CE transistor phase difference between input and output signal is π = 180°
Using formula,
| Av = | Vi |
⇒ V0 = AV × Vi
| = 150 × 2cos | | 15t + | | 3 |
| or V0 = 300 cos | | 15t + | + π | | 3 |
| V0 = 300 cos | | 15t + | π | | 3 |
