A solid cylindrical Aluminum rod has a diameter of 0.5 inch and weighs 23 lbs. The density of Aluminum is 0.0974 lb/cubic inch. Determine the length in feet and the diameter to which it should be drawn to give a resistance of 1.07 ohms, if volume remains umchanged. resistivity of Aluminum= 17 ohms CM/ ft

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.