Question

I have an understanding of electrical circuits, however I am very interested to know more about electromagnetic waves radiation.

In particular I want to know how an oscillating voltage causes the electrons move inside a conductive antenna. Voltage is only a difference in electrical potential in our local circuit, it is only difference between electrical potential of two nets (ex ANT and GND) so how the ANT net can itself cause movements of electrons inside an antenna? (because in some circuits the antenna is only connected to ANT.)

I want to know which physics model explains this phenomenon? as far as I know circuit theory doesn't explain this behavior. so It should be something else.

I know there are some formulas to model electromagnetic radiation, however I want to build an intuition around this, I don't need formulas to solve problems.

Also I know that speed of the light has relation to design of the antenna, so I think the theory should include speed of the light as well.

I prefer to not get very deep in physic subjects, so I am looking for the most higher level theory/model which is able to fully explain this :)

Answer 1

An oscillating voltage applied to a conductive antenna causes the electrons to move. This is explained by the production and detection of electromagnetic waves.

Step-by-step explanation:

When an oscillating voltage is applied to a conductive antenna, it causes the electrons in the antenna to move. This phenomenon can be explained by the production and detection of electromagnetic waves.

An alternating current in the antenna creates an oscillating electric field, which in turn produces a changing magnetic field. These changing electric and magnetic fields propagate as electromagnetic waves, with the frequency of the waves matching the frequency of the applied voltage.