a) Resistivity

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Last updated 3:53 PM on 2/20/26
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4 Terms

1
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  • describe the difference between resistance and resistivity

  • resistance = the specific current oppositions of specific components

  • resistivity = an electrical property of specific materials

2
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  • state the relationship between the resistance and the length of a wire

  • directly proportional

3
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  • state the relationship between the resistance and the cross-sectional area of a wire

  • inversely proportional

4
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  • state the formula for the resistivity of a material

  • ρ = (RA)/L

    • resistivity of a material (Ωm) = (resistance of the component (Ω) x cross-sectional area of the component (m²)) / length of the component (m)