AP EAMCET · PHYSICS · Communication System
If \(E_c\) and \(E_m\) are peak values of carrier and modulating signals, respectively then for \(100 \%\) modulation,
- A \(E_c=\frac{E_m}{2}\)
- B \(\frac{E_c^2}{2}=E_m^2\)
- C \(E_{\mathrm{c}}=E_m\)
- D \(E_c=2 E_m\)
Answer & Solution
Correct Answer
(C) \(E_{\mathrm{c}}=E_m\)
Step-by-step Solution
Detailed explanation
Key idea Modulation index of a modulated signal is \(\mu=\frac{E_m}{E_c}\) Where, \(E_m\) and \(E_c\) are peak values of modulating signal and carrier signal. For \(100 \%\) modulation, modulation index should be unity. Hence, \(\mu=1=\frac{E_m}{E_c}\)…
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