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प्रश्न
What happens to the resistance as the conductor is made thinner?
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उत्तर
The resistance of a wire can be represented by the following equation:
`R=(rhol)/A`
So, when the conductor is made thinner, its area of cross-section will decrease, since resistance is inversely proportional to the area of the conductor. Therefore, its resistance will increase.
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| − | Material | Resistivity (Ω m) |
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