InterviewSolution
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InterviewSolution
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The tuned circuit of an oscillator in a simple `AM` transimitter employs a `250` micro henry coil and `1 nf` condenser. If the oscillartor output is modulated by audio frequency upto `10KHz`, the frequency range occupied by the side bands in `KHz` isA. `210` to `230`B. `258` to `278`C. `308` to `328`D. `118` to `128` |
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Answer» Correct Answer - C `f_(c)=(1)/(2pisqrt(LC))=318 khz`, `f_(m)=10khz` `LSB=f_(c)-f_(m)=308` `USB=f_(c)+f_(m)=328` |
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