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प्रश्न
Which has less electrical resistance : a thin wire or a thick wire (of the same length and same material)?
उत्तर
A thick wire has a greater area of cross-section, whereas a thin wire has a smaller area of cross-section. Also, the resistance of a conductor is inversely proportional to its area of cross-section. This means that a thick wire has lesser resistance than a thin wire.
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संबंधित प्रश्न
On what factors does the resistance of a conductor depend?
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area of cross-section of the conductor?
How does the resistance of a conductor depend on:
temperature of the conductor?
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increasing its length?
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