A broadcast AM transmitter radiates 50 k

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Target Exam

CUET

Subject

Physics

Chapter

Communication

Question:

A broadcast AM transmitter radiates 50 kW of carrier power. What will be the radiated power at 85% modulation ?

Options:

150 kW

68 kW

85 kW

115 kW

Correct Answer:

68 kW

Explanation:

P_t = P_c [ 1 + $\frac{\mu^2}{2}$ ]

Pc = 50 kW ; $\mu$ = 85%

P_t = 68.1 kW