problem on bjt SMALL SIGNAL amplifier circuit

Thread Starter

munna007

Joined Jul 23, 2008
51
hello friends....this question is from gate 2009 exam.i m unable to solve it....can anybody plz provide me its solution.....

i have its answer keys only....option D is answer.

thanks....
 

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t_n_k

Joined Mar 6, 2009
5,455
The capacitors will have very different reactances at the two frequencies present in the source signal. The low frequency component at 20 rad/sec will be highly attenuated compared with the 10^6 rad/sec component. The assumption then is that only the high frequency component will be discernible at the output.

So it boils down to either answer C or D.

You should attempt to estimate the circuit gain at the higher frequency and from that determine which answer would be more reasonable.
 
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