Difference between Resistance and Resistivity (physics current and electricity 2019)

Visit our website for about physics and many more https://theeasyedu.com/ What is the difference between resistance and resistivity detail explaination Resistance Resistance is the opposition that a substance offers to the flow of electric current 𝑠𝑦𝑚𝑏𝑜𝑙 𝑜𝑓 𝑟𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑅 si unit of resistance is ohm denoted by Ω According to ohms law V=𝐼𝑅⇒𝑅=𝑉/𝐼 Resistance depending on dimension of the wire 𝑅∝𝐿 𝑅∝1/𝐴 𝑅∝𝐿/𝐴=𝜌 𝐿/𝐴 rho 𝜌=𝑟𝑒𝑠𝑖𝑠𝑡𝑖𝑣𝑖𝑡𝑦 Resistivity Resistivity, is a fundamental property of a material that quantifies how strongly it resists or conducts the flow of electric current. 𝑅=𝜌 𝐿/𝐴 𝜌=𝑅 𝐴/𝐿 If 𝐴=1𝑚^2 𝑎𝑛𝑑 𝐿=1𝑚 𝜌=𝑅 Different materials have different values of resistivity Thank you hashtags #resistance #resistivity #ohmslaw #current #electricity #wireresistance #physics #physicslectures

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