An amplitude modulated signal is given by,s(t)=[20+2cos(3000πt)+10cos(6000πt)]cos(2πfct)VThe ratio of the power in sidebands to the power in carrier component is
A
0.26
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B
0.52
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C
0.13
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D
0.065
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Solution
The correct option is C0.13 μ1=220=110andμ2=1020=12μ=√μ21+μ22μ2=(110)2+(12)2=1100+14=26100=0.26PSB=Pcμ22PSBPc=μ22=0.262=0.13