Question #209880

Common collector amplifier has an input resistance of Rin=10kΩ and load 

resistance of RL=100Ω. Power gain for this amplifier is 100. What is the voltage gain 

of the amplifier?


1
Expert's answer
2021-06-23T13:09:05-0400

Gives

Rin=10KΩR_{in}=10K\Omega

RL=100ΩR_L=100\Omega

Ap=100A_p=100

Ap=AiAvA_p=A_iA_v

Av=ApAiA_v=\frac{A_p}{A_i}

Put value

Av=100AiA_v=\frac{100}{A_i}

Ai=RLRiA_i=\frac{R_L}{R_i}


Av=100Ai=100RLRi=100×10000100=104A_v=\frac{100}{A_i}=\frac{100}{\frac{R_L}{R_i}}=\frac{100\times10000}{100}=10^4

Av=104A_v=10^4


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