lecture2 - Electr ic Fields Definition: Electr ic Field E q...

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Unformatted text preview: Electr ic Fields Definition: Electr ic Field E q q Force Field Pictur e: The source charge q produces an electric field in space. The field pushes on the test charge q . ? Definition: Electric Field = F E q = A vector Exists before test charge is introduced I s produced by other charges (not q ) q is small so as to not disturb the charges producing the field it is a mathematical construct Units : N/ C Force on tiny test charge q charge q Example: Calculate the force on an alpha particle (q = +2e) if it is placed in the field. q [ ] = C N E 1000 Repeat for an electron. E Fields ar e E Fields ar e Pr oduced by Pr oduced by positive positive char ges, char ges, and ter minate on negative char ges and ter minate on negative char ges Which way will a + or charge move in this field? E Fields between two char ged plates E Fields between two char ged plates + + + + + + + +-------- Which way will a + or charge move in this field? E Fields ar e...
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This note was uploaded on 05/02/2010 for the course PHYSICS 1E03 taught by Professor Jopko during the Spring '08 term at McMaster University.

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lecture2 - Electr ic Fields Definition: Electr ic Field E q...

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