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प्रश्न
What happens to the resistance, as the conductor is made thicker?
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उत्तर
The resistance of a conductor is inversely proportional to the area of cross-section of the conductors. Hence, resistance is inversely proportional to the square of the radius of the conductor.
R ∝ \(\frac{1}{A}\)
R ∝ \(\frac{1}{r^2}\)
When a conductor is made thicker, the radius will be increased and so its resistance will be decreased.
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संबंधित प्रश्न
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Assertion (A): Copper is used to make electric wires.
Reason (R): Copper has very low electrical resistance.
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If the area of cross-section of the conductor is doubled its resistance gets ______.
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5 bulbs are connected in series in a room. One bulb is fused. It is removed and remaining 4 bulbs are again connected in series to the same circuit. What will be the effect on the following physical quantities? (Increases, Decreases, Remain Same). |
- Resistance
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