1. Electric and Magnetic Fields Sources of Electric Field?Sources of Magnetic Field? Accelerated Charges

2. Electromagnetic Waves & Electromagnetic Spectrum Figure from Tipler & Mosca, “Physics for Scientists and Engineers”, 5 th edition, p. 977 Exercise: Visible light is a small portion of the electromagnetic spectrum. The wavelengths of visible light range from 400 nm (violet) to about 780 nm (red). What is the range of frequencies of visible light? (1 nm = 10 -9 m)

3. Direction of EM Waves & Polarization EM wave made up of Electric field and Magnetic field E perpendicular to B Direction of wave perpendicular to E and B Exercise: The Electric field part of an EM wave oscillates IN and OUT of the screen. What are possible directions of the Magnetic field part of this EM wave? Follow-up Exercise: An EM wave is moving to the LEFT. At some instant at some point, the Electric field points OUT of the screen. At this instant at this point, what is the direction of the Magnetic field?

4. Making a Radio Wave