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Explain the experiment to determine the ...

Explain the experiment to determine the resistivity of the material of the wire using meter bridge.

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Formula `rho = ( pi d ^(2) R )/( 4L) and R = (Sl )/((1 - l ))`
Where `rho=` resistivity in `Omega-m`
d = diameter of the wire in m
R = resistance of the given wire in `Omega`
L = length of the given wire in m
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