Math, asked by wwwshushmita, 1 month ago

A metallic wire of 625 mm length offers a 4ohm
resistance. If the resistivity of the metal is 4.8x10^-7ohm meter

, Calculate the area of cross section of the wine

Answers

Answered by rajeebsc001

2

Answer:

R = resistivity (length)/cross section area cross section area = resistivity (length)/resistance

A = 4.8x10^-7 (625x10-³)/4

= 7.5x10^-8m²

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