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Unformatted text preview: material From one point to another. 7. Ohms Law: Relationship between voltage, current, and resistance. V = I R or I = V/R 8. Power ( P ) is the rate at which work is done. or electrical power, P = V I or P = V 2 /R or P = I 2 R 9. Equivalent resistances: (a) or resistances hooked up in series: R eq = R 1 + R 2 + R 3 + .... (b) or resistances hooked in parallel: 1 R eq = 1 R 1 + 1 R 2 + 1 R 3 + .... 2...
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