what happens to the current if the area of cross section of wire is halved ? ( class 10 physics chapter electricity
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as I is inversely proportional to area of cross section of an wire
current will be increased twice
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As resistance is inversely proportional to area of cross-section, therefore, if the cross-sectional area of a piece of wire is halved, the resistance in the wire is doubled. And, if resistance is doubled, the current flowing through the wire is halved.
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