180k views
2 votes
An 800-kHz radio signal is detected at a point 4.5 km distant from a transmitter tower. The electric field amplitude of the signal at that point is 0.63 V/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. What is the magnetic field amplitude of the signal at that point

User Anru
by
6.1k points

1 Answer

6 votes

Answer:


B_2=2.1nT

Step-by-step explanation:

From the question we are told that:

Frequency
F=800kHz

Distance
d=4.5km

Electric field amplitude
B_2=0.63V/m

Generally the equation for momentum is mathematically given by


B=(E)/(C)

Therefore


B_2=(0.63)/(3*10^8)


B_2=0.21*10^(-8)


B_2=2.1nT

User Pedro Almeida
by
7.7k points