InterviewSolution
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InterviewSolution
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In a detector, output circuit consists of `R = 10kOmega and C = 100 p F.` Calculate the frequency of carrier signal it can detect.A. ` gt gt 1 MHz `B. ` 0.1 kHz `C. `gt gt 1 GHz `D. `10^(3) Hz ` |
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Answer» Correct Answer - A Time constant of the circuit `tau=RC=10^(4) xx 10^(-10)=10^(-6) s ` For demodulation , `(1)/(f_(c)) lt lt RC ` ` or f_(c) gt gt (1)/(RC) or f_(c) gt gt (1)/(10^(-6))=10^(6)Hz ` |
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