Question
An electromagnetic wave radiates outwards from a dipole antenna, with $E_0$​ as the amplitude of its electric field vector. The electric field $B_0$​ which transports significant energy from the source falls off as$:$

Answer

An antenna that produces the Electromagnetic wave are radiated outwards. The amplitude of electric field vector $(E_0​).$ This electric field vector transports the energy from the source through the medium.
The electric field intensity of the wave from the source at a distance is inversely proportional to the distance between the source and the point. $\text{E}_0=\frac{1}{\text{r}}$

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