A square wave of the modulating signal is shown in the figure. The...

A square wave of the modulating signal is shown in the figure. The carrier wave is given by $C$ \left(t\right) = 5sin $\left(8\pit\right)$ Volt. The modulation index is

A square wave of the modulating signal is shown in the figure. The carrier wave is given by C (t) = 5sin (8 ) Volt. The

Options

A $0 . 2$
B $0 . 1$
C $0 . 3$
D $0 . 4$

Correct answer

A. $0 . 2$

Step-by-step solution

Given here, $C$ \left(t\right) = 5sin $\left(8\pit\right)$ volts.
From the carrier wave equation we have, ${A}_{C} = 5$ and from the graph we have, ${A}_{m} = 1$ .
Modulation Index $\mu = \dfrac{{A}_{m}}{{A}_{C}} = \dfrac{1}{5} = 0 . 2$
Where,
${A}_{m} =$ amplitude of modulating signal
${A}_{c} =$ amplitude of carrier wave

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