Lesson: Propagating Electric and Magnetic Fields

In this lesson, we will learn how to model electromagnetic waves as propagating electric and magnetic fields.

Worksheet: 8 Questions

Q1:

Electromagnetic waves propagate through water that has a refractive index of 1.33. The electric permittivity of the water is C²/N⋅m². What is the magnetic permeability of the water?

Q2:

Which of the following formulas correctly shows the relation between , the speed at which electromagnetic waves propagate through a medium; , the electric permittivity of the medium; and , the magnetic permeability of the medium?

Q3:

At what speed do electromagnetic waves propagate in a vacuum? Answer to two significant figures.

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