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How Does the Resistance of a Wire Vary with Its Area of Cross-section? - CBSE Class 10 - Science

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Question

How does the resistance of a wire vary with its area of cross-section?

Solution

 Resistance (R) of a wire is inversely proportional to its area of cross-section (A), i.e. when area of cross section increases the resistance decreases or vice versa.

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Solution How Does the Resistance of a Wire Vary with Its Area of Cross-section? Concept: Heating Effect of Electric Current.
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