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  • An amplitude modulated wave is represented by  <img alt="C_{m}\left ( t \right )= 10\left ( 1+0\cdot 2\cos 12560t \right )\sin \left ( 111\times 10^{4}t \right )" src="https://entrancecorner.codecogs.com/gif.latex?C_%7Bm%7D%5Cleft%20%28%20t%20%5Crigh

An amplitude modulated wave is represented by  C_{m}\left ( t \right )= 10\left ( 1+0\cdot 2\cos 12560t \right )\sin \left ( 111\times 10^{4}t \right ) volts. The modulating frequency in kHz will be -----------------------.
 

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best_answer

C_{m}\left ( t \right )= 10\left ( 1+0\cdot 2\cos 12560t \right )\sin \left ( 111\times 10^{4}t \right )
\omega _{m}= 12560= 2\pi f
12560= 6\cdot 28\times f
f= \frac{12560}{6\cdot 28}
= 2\cdot 0\, kHz
f= 2\, kHz 

Posted by

vishal kumar

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