Show that for 100% modulation ,a signal side-band contains 1/6th of the total power rediated by the transmitter.

Fraction of total power carried by side bands is given by-

When m=1 ,power carried by side bands is:

The modulation index is 0.75. Then the useful power available in the side bands nearly

A 300W carrier is modulated to a depth 75%. The total power in the modulated wave is

In AM wave total power of side bands is given by :

A 400 W carrier wave is modulated to a depth of 75%. Calculate the total power in the modulated wave.

Fraction of total power carried by the side bands (P_(S)//P_(T)) is given by

Show that (2, -1) and (1, 1) are an opposite sides of 3x+4y=6 .

A vessel of 4.00L capacity contains 4.00 g of methane and 1.00 g of hydrogen at 27^(@)C . Calculate the partial pressure of each gas and also the total pressure in the container.

(a) What is amplitude modulation? Draw a diagram showing an amplitude modulated wave obtained by modulation of a carrier sinusoidal wave on a modulating signal. (b) Define the terms (i) modulation index, and (ii) side bands. Mention the significance of side bands.