How does the energy of an electromagnetic wave at a given point in the field depend on the distance to the oscillating charge? What role does this play in radio engineering?
The energy of an electromagnetic wave decreases in inverse proportion to the square of the distance. This allows the use of radio communications over long distances.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.