An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.60 kW. A receiving antenna 60.0 cm long is at a location 4.00 mi from the transmitter. Compute the amplitude of the emf that is induced by this signal between the ends of the receiving antenna.

The magnetic field component of an EM wave propagating through a nonmagnetic medium H= Ho is H = 25 • sin(2 × 10®t + 6x) ay mA/m Determine: a) The direction of wave propagation b) The permittivity of the medium c) The electric field intensity

A dish antenna with a diameter of 21.0 m receives (at normal incidence) a radio signal from a distant source. The radio signal is a continuous sinusoidal wave with amplitude Emax = 3.50 μV/m. Assume the antenna absorbs all the radiation that falls on the dish. (a) What is the amplitude of the magnetic field in this wave? (b) What is the intensity of the radiation received by this antenna? (c) What is the power received by the antenna?

Two friends are playing with hand-held radio transcelvers which have dipole antennas. If the antenna of the transmitting radio is vertical, and the antenna of the receiving radio is at an angle 0 to the vertical, what is the recelved power as a percentage of the maximum possible received power at the receiving antenna in the following cases? (a) e - 22.00 % (b) e - 47.0° % (c) e - 79.0°