24 A - Electromagnetic Waves - Maxwell's Equations and EM Spectrum

Describe and name the sources of electromagnetic radiation

Energy Transitions Radioactive decay Accelerating charges centripetal acceleration or changing speed

Equations and rules for EM Waves

RHR#3 fINGERS ARE E-field, bend at 90-degree angle in direction of B-field, thumb out for velocity Em Waves do not require medium When EM Waves are incidence on the matter they and or: reflect, absorb, or transmitted through the medium.

Explain Maxwell's Equations

Three phenomena (electric fields, magnetic fields, and light(EMWaves) were all parts of a whole. That whole being electromagnetic waves electro fields move charges in a wire and generate b-fields if you change b-field it generate Voltage which is an electric potential property of E-fields So, he created an equation that showed the speed of EM waves is 3e8m/s

Learning Objectives

Understand the key points of Maxwell's equations. Draw a simplified electromagnetic spectrum, indicating the relative positions, frequencies, and spacing of different types of radiation bands. List and explain the different methods by which electromagnetic waves are produced across the spectrum.