A signal emitted by an antenna from a certain point can be received at another point of the surface in the form of

Why a signal transmitted from a TV tower cannot be received beyond a certain distance? Write the expression for the optimum separation between the receiving and the transmitting antenna.

Equipotentiai surface is a surface on which the electric potential is the same at every point:- A point charge +q Is placed at the centre of a sphere of radius B. An other point charge +q is take from a point A to another diametrically opposite point B on the surface of the sphere. Calculate the work done for this.

Why a signal transmitted from a TV tower cannot received beyound a certain distance ? Write the expression for the optimum separation separation between the receiving and the transmitting antenna.