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

Question

A square wave of the modulating signal is shown in the figure. The carrier wave is given by C ( t )=5 sin (8 π t ) Volt. The modulation index is: (A) 0.2 (B) 0.1 (C) 0.3 (D) 0.4

Tardigrade Admin · Accepted Answer

Modulation Index μ=(Am/AC)=(1/5)=0.2 Am=a m p. of modulating signal A C = amp. of carrier wave

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

0.2

0.1

0.3

0.4

Modulation Index $μ = \frac{A _{m}}{A _{C}} = \frac{1}{5} = 0.2$
$A_{m} = am p$ . of modulating signal
$A_{C} =$ amp. of carrier wave

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

0.2

0.1

0.3

0.4

Modulation Index μ=AC​Am​​=51​=0.2 Am​=amp. of modulating signal AC​= amp. of carrier wave

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

Modulation Index $μ = \frac{A _{m}}{A _{C}} = \frac{1}{5} = 0.2$
$A_{m} = am p$ . of modulating signal
$A_{C} =$ amp. of carrier wave