Question

If a 1 MHz radio transmitter sends out 20 W of
radiation, the amplitude of the magnitude of the
magnetic field in Tesla) of the radiation at a
distance of km from the transmitter is
10
915
(assume that the radiation is uniform on a sphere
with the transmitter at its center)(Take Eo = 9 x
10-12 c? N/m2)​

Answer 1

Answer:

A radio transmitter sends out 60W of radiation. Assuming that the radiation is uniform on a sphere with the transmitter at its centre, the intensity ( in W/m  

2

) of the wave at a distance 12km is