Question

Relation b/w electric and magnetic field with full summery

Answer 1

Answer:

in an electromagnetic wave, electric field and magnetic field both have waveform i.e. magnitude of both can be expressed as function of (kx-wt) i.e. (kx-vt).

E=Asin (kx-wt)

B=Asin (kx-wt)

If we insert this relation in the Maxwell's one dimensional relation.

curl of E= -(time derivative of B)

we simply get: kE= wB

and we know velocity of light c = w/k

ultimately it gives the relation E= cB

it gives the relation of magnitudes of E and B, the direction of E, B and c are mutually perpendicular.