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What happens if the cross-section of …

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What happens if the cross-section of the conductor is made thinner?

Posted by Shriya Samaga 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 5 months ago

The resistance of the wire will increase if we made the conductor thinner because R (resistance) = p (rho). l (length) / A (area of cross-section or thickness of wire).

Area is directly proportional to the radius of the wire.
So as you can see if area of cross-section ( or thickness) of wire increases, resistance decreases and more current flows through it.

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