An
airplane flying at a distance of 11.3 km from
a radio transmitter receives a signal of
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Solution: Click For PDF Version (a) Recall that in problem 554. 41.20 (RHK) we have shown that the amplitude of the electric field of a plane wave and intensity of the wave are related as
It is given
that the intensity of the signal received by the aeroplane when it
is at a distance of 11.3 km from a radio transmitter is
And the amplitude of the magnetic field will be
(c) The total power radiated by the radio transmitter, assuming that it is radiating uniformly in all directions, will be
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We have to calculate
(a) the amplitude of the electric field at the
airplane due to the signal; (b) the
amplitude of the magnetic field at the airplane;
(c) the total power radiated by the
transmitter, assuming
the transmitter to radiate uniformly in all directions.
(b)
