What length of copper wire, 0.462 in diameter, has a resistance of 1.00
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What length of copper wire, 0.462 in diameter, has a resistance of 1.00

[From: ] [author: ] [Date: 11-05-24] [Hit: ]
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Resistance (R) depends on the resistivity (rho) of the material, the length (L) and cross section area (A)
of the wire as

R= rho * L/A.

use A= 1/4* pi* d^2= pi* r^2.

where r=d/2= radius of the copper wire.
find rho from your text book or internet.


then the eq can be written as-

R*A/ rho= L

-
shanky is correct
1
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