Question

For an AM, amplitude of modulating signal is 0.5 V and carrier amplitude is 1V. Find
Modulation Index.

Answer 1

modulating signal is 0.5 V

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Answer 2

Given: amplitude of modulating signal = 0.5V

          Carrier amplitude = 1V

To find: Modulation index

Solution: Modulation index is the ratio of the amplitude of modulating signal and carrier signal, and it is represented by 'm'.

m = 0.5/1 = 0.5

It is a ratio hence it is dimensionless.

• Amplitude modulation is a process by which the wave signal is transmitted by modulating the amplitude of the signal.
• The amplitude of the carrier signal changes in accordance with the amplitude of a modulating signal.
• Modulation index implies the extent to which the modulation is done in the carrier signal, and it should be between zero and one.