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A message signal of frequency $f_m = 10 \text{ kHz}$ and peak voltage $A_m = 10 \text{ V}$ is used to modulate a carrier wave of frequency $f_c = 1 \text{ MHz}$ and peak voltage $A_c = 20 \text{ V}$. Determine the modulation index $\mu$.
- A.0.25
- B.0.5
- C.0.75
- D.1.0
Show correct answer & step-by-step solution
Correct answer: B — 0.5
Solution
The modulation index is defined as . Substituting the given values, .
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