Give three reasons why the modulation of a message signal is necessary for long-distance transmission.
Reasons:
Give three reasons why the modulation of a message signal is necessary for long-distance transmission.
Show graphically an audio signal, a carrier wave and an amplitude modulated wave.
In a full wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be
A hemisphere is positively charged uniformly. The electric field at a point on a diameter away from the centre is directed
What maximum frequency can be reflected from ionosphere?
Mock Test Series
