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प्रश्न
A 10 m long wire of a particular material is of reistance 5Ω What will be the resistance of 5m long wire of same material and the same thickness.
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उत्तर
Given: The resistance of 10 m long wire = 5 Ω
R α l for the same thickness material so if the length of wire becomes half of the previous value, resistance will also become 1/2th of its previous value.
Or R = `1/2 xx 5 Omega = 2.5 Omega`
संबंधित प्रश्न
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| Potential difference, V (in volts) | : | 2.5 | 5.0 | 10.0 | 15.0 | 20.0 | 25.0 |
| Current, I (in amperes) | : | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 |
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c. Name the law which is illustrated by the above V-I graph.
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