# Write the Relation Between the Velocity of Propagation and the Magnitudes of Electric and Magnetic Fields. - Physics

Write the relation between the velocity of propagation and the magnitudes of electric and magnetic fields.

#### Solution

The relation between the velocity of propagation and the magnitudes of electric and magnetic fields is given by

c=E/B

Here,
c = Velocity of the electromagnetic wave
E = Magnitude of the electric field
B = Magnitude of the magnetic field

Note that electromagnetic waves propagate with the speed of light. So, in this case, c is the speed of light.

Concept: Motion in Combined Electric and Magnetic Fields - Velocity Selector
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