Home
Class 12
PHYSICS
The modulation index for an AM wave for ...

The modulation index for an AM wave for which the maximum amplitude is `'a'` while the minimum amplitude is `‘b’` will be

A

`(a+b)/(a-b)`

B

`(a-b)/(a+b)`

C

`(2a-b)/(a+2b)`

D

`(b-2a)/(2a+b)`.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

For an amplitude modulated wave, the maximum amplitude is found to be 10V while the minimum amplitude is found to be 2V. Determine the modulation index, mu .

Define amplitude of a wave

(i) Define modulation index. (ii) Why is the amplitude of modulating signal kept less than the amplitude of carrier wave ?

What is amplitude modulation ?

Radio waves of constant amplitude can be generated with

Amplitude modulation has

A series LCR circuit with L = 0.12 H, C = 480 nF, R = 23 Omega is connected to a 230 V variable frequency supply. (a) What is the source frequency for which current amplitude is maximum. Obtain this maximum value. (b) What is the source frequency for which average power absorbed by the circuit is maximum. Obtain the value of this maximum power. (c) For which frequencies of the source is the power transferred to the circuit half the power at resonant frequency? What is the current amplitude at these frequencies? (d) What is the Q-factor of the given circuit?