Lesson: 4,11 for 10th ( Define electrical resistivity with formula and give its unit ) answer for physical and chemical
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Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. ... The unit of resistance is the ohm.
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