How does oscillating charge produce electromagnetic waves?
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Solution
EM waves from oscillating charge:
When a charge is moving it produces an electric current.
Hence, when a charge oscillates it produces an oscillating electric field.
Again we know that changing current induces a magnetic field.
Therefore the oscillating electric field produces an oscillating magnetic field.
These two oscillating electric and magnetic fields regenerate each other.
This regeneration causes the wave to propagate forward.
This produces an electromagnetic wave where the direction of the electric field, magnetic field, and propagation are all mutually perpendicular to each other.
