Question: What is the modulation index of an AM signal if the peak voltage goes from Emax to Emin?
Options
A : \frac{E_{min}}{E_{max}}E min E max
B : \frac{E_{max}}{E_{min}}
C : \frac{E_{max} ? E_{min}}{E_{max} + E_{min}}
D : \frac{E_{max} + E_{min}}{E_{max} ? E_{min}}
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