Questions
The input signal given to a CE amplifier having a voltage gain of 150 is . The corresponding output signal will be
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a
2cos15t+5π6
b
300cos15t+4π3
c
300cos15t+π3
d
75cos15t+2π3
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Correct option is B
Here, Input signal, Vi=2cos15t+π3 and voltage gain, Av=150 As Av=VoVi∴ Output signal, Vo=AvVi Since CE amplifier gives a phase difference of π=180° between input and output signals, ∴ Vo=1502cos15t+π3+π =300cos15t+4π3
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