Answer to Question #334039 in Mechanics | Relativity for Khadijah

Mechanics | Relativity

Question #334039

coil of wire 4 m long has a resistance of 20 2. If its resistivity is 108 x 10*2 m, find its

area of cross-section

Expert's answer

$R=\frac{\rho l}S,$

$S=\frac{\rho l}R=0.04~mm^2.$

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