At what distance from a point source of electromagnetic waves is the magnetic field amplitude ?
EM waves are waves that are formed when an electrical field and a physical phenomenon vibrate together.
we know that:
A long, thin superconducting wire carrying a current passes through the center of a thin, -diameter ring. A uniform electric field of increasing strength also passes through the ring, parallel to the wire. The magnetic field through the ring is zero.
. At what rate is the electric field strength increasing?
. Is the electric field in the direction of the current or opposite to the current?
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