Write down an expression for the resistance of a metallic wire in terms of the resistivity | What wi

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a) Write down an expression for the resistance of a metallic wire in terms of the resistivity.
b) What will be the resistance of a metal wire of length 2 metres and area of cross-section 1.55×10^-6m^2, if the resistivity of the metal be 2.8×10^-8Ωm?
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Thank You !
By - Vineet Pandey
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