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How to calculate factors affecting the resistance of a material
This explains how to calculate factors affecting the resistance of a material, length, area, resistivity and temparature. It provides the formula to calculate the resistance of a metal or wire using resistivity. It discusses the inverse relationship between resistance and area , the direct relationship between resistance and length, as well as resistance and temperature. Electrical conductors such as metals have a positive temperature coefficient of resistivity which means as the temperature increase so will the resistance of a conductor. For metalloids, the opposite is true. These elements have a negative temperature coefficient, which means as my temperature increase my resistance will decrease. The resistivity depends on the length, cross-sectional area and temperature of a conductor. This video shows examples of how to manipulate the standard formula to calculate length, area, resistivity and resistance. It also shows how to calculate temperature.
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#resistivity
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#negativetemperaturecoefficient
#length
#area
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