Question

The total power content of an $A.M$ wave is $6000W.$ For $100$% modulation, the power transmitted by the carrier is then

• A. $500W$
• B. $700W$
• C. $750W$
• D. $4000W$

Answer 1

The correct option is D $4000W$

Given.

Total Power content $P_t=6000W$

$\text{Modulation}m=100$

Carrier transmitted power, $P_c$

$P_t=P_c(1+\frac{m^2}{2})$

$6000=P_c(1+\frac{1}{2})$

$P_c=4000W$

Hence, Carrier transmitted power is $4000W$