An airplane flying at a distance of 9.9 km from a radio transmitter receives a signal of intensity 12 μw/m2. what is the amplitude of the (a) electric and (b) magnetic component of the signal at the airplane? (c) if the transmitter radiates uniformly over a hemisphere, what is the transmission power?

0.09511 V/m

7389.7799 W

Explanation:

I = Intensity of signal =

=  Permittivity of free space =

c = Speed of light =

A = Area of the hemisphere

Intensity of Electric field

Electric field of the wave is 0.09511 V/m

Magnetic field

Magnetic field of the wave is

Power

The transmitter radiates 7389.7799 W of power

grav forces affect all objects magnetic forces affect magnetic objects and electric currents