Q. The antenna current of an AM broadcast transmitter modulated by 50% is 11. Find the carrier current
A) 9.25 A
B) 10 A
C) 10.35 A
D) 5.5 A
Explanation
(c) $I_{carrier} = \frac{I_{total}}{\left( 1 + m_{a}^{2}/2 \right)^{1/2}}$
$= \frac{11}{\sqrt{1 + (0.5)^{\frac{2}{2}}}} = 10.35\ A$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.