Physics, asked by charlesmwaivu, 10 months ago

A piece of wire of cross-sectional area 2 mm2 has a resistance of 300 . Find (a) the resistance of a wire of the same length and material if the cross-sectional area is 5 mm2, (b) the cross-sectional area of a wire of the same length and material of resistance 750

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Answered by swamsel50

4

Answer:

Use the ratios of their resistances and area to find the solution.

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