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The electrical resistance of a 5 m long ...

The electrical resistance of a 5 m long wire is `3 Omega` Calculate the electrical resistivity and conductivity of material if its cross section is `0.03 mm^2` .

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To solve the problem of finding the electrical resistivity and conductivity of the material of a wire, we can follow these steps: ### Step 1: Understand the given data - Length of the wire (L) = 5 m - Resistance (R) = 3 Ω - Cross-sectional area (A) = 0.03 mm² ### Step 2: Convert the cross-sectional area from mm² to m² ...
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MODERN PUBLICATION-CURRENT ELECTRICITY-Chapter Practice Test
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  11. A cell of emf E and internal resistance r is connected across an exter...

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  14. Obtain the condition for bridge balance in Wheatstone's bridge.

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  16. n-identical cells each of emf E and internal resistance r are connecte...

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