What is the modulation index if an audio signal of amplitude one-half of the carrier amplitude is used in AM?

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.5

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

> 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $0.5$
Modulation index in terms of amplitudes is given by:
$m = \frac{A_{m}}{A_{c}}$
where:
$A_{m} :$ Amplitude of the audio signal
$A_{c} :$ Amplitude of the carrier signal

$m = \frac{1 / 2 A_{c}}{A_{c}} = 0.5$

Suggest Corrections

Similar questions

25 sin 2 π (2000 t)

60 sin 2 π (100, 000 t)

40

25 %

v_{m} = 20 sin 2 π (1500 t)

v_{c} = 80 sin 2 π (100, 000 t)

10 m V

2 m V

Join BYJU'S Learning Program