uses elementary principles of physics to shed new light on EMI, and shows students and engineering professionals how to solve problems that are often beyond the scope of circuit theory. Drawing on his 30 years experience in the field, author Ralph Morrison: Defines EMI broadly to accommodate utility power and the physical environment. Puts questions of grounding and shielding in a completely new light. Uses very simple mathematics that make it easy to understand what is happening and why. Shows how interference is generated and how it impacts design. Describes instrumentation design and specifications, including the nature of feedback and commonly encountered problems. Provides methods and techniques for testing and evaluating designs. Deals with questions of radiation and its correlation to equipment. Covers interference questions in computer manufacturing and systems design. Provides many illustrations that clarify difficultmaterial and explain complex processes.