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# What is the resistance of the wire?

A potential difference of 13 V is found to produce a current of 0.42 A in a wire of length 3 m with a uniform radius of 0.5 cm.

What is the resistance of the wire? Answer in units of Ω.

What is the resistivity of the wire? Answer in units of Ω · cm

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- alexLv 710 months agoFavorite Answer
Rules

R = V/I , R=resistance , V=voltage , I = current

R = ρ*L/S , ρ = resistivity of the wire , L = length , S = cross section area

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