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Write down an expression for the resistance of a metallic wire in terms of the resistivity. - Science

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प्रश्न

Write down an expression for the resistance of a metallic wire in terms of the resistivity.

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उत्तर

 Length of the cable wire = l 

Area of cross-section = A
Resistivity of the aluminium cable wire = `rho` 
 
Resistance of the wire = R

Then,  `R=l/A` 

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पाठ 1: Electricity - Exercise 4

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