Question

The antenna current of an AM broadcast transmitter which is modulated by $50\%$ is $11A$ . The carrier current is

• A. $9.25A$
• B. $22A$
• C. $10.3A$
• D. $5.5A$

Answer 1

Answer: (C)

$I_T=I_C\sqrt{1+\frac{m^2}{2}}$
$I_C=\frac{11}{\sqrt{1+\frac{{\left(0.5\right)}^2}{2}}}=10.3A$