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Home Magnetic Fields and Electromotive Force Electrical Resistance  
See also: Ohm's Law, Effective Resistance  
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Electrical ResistanceAuthor: E.E. Kimberly When water flows through a pipe, the walls of the pipe offer resistance to the flow. Similarly, when an electric current flows through a conductor, the substance of the conductor offers resistance to the flow. The ohm^{1} is the unit of measurement of electrical resistance, and the conventional symbol for it is Ω. A current of 1 ampere will flow in a conductor having a resistance of 1 ohm when a difference of potential of 1 volt is applied. The flow of electric current through a conductor produces heat and increases the temperature of the conductor.


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