if the length of the conductor is doubled,find the ratio of resistance from previous to new one.
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1:2 should be the answer........
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Resistance is directly proportional to the length of the wire, and inversely proportional to the cross sectional area of the wire.
R = pl/A, where R is resistance, p is the material's resistance in ohms, l is the length, and A is the cross sectional area in m^2.
As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases
R = pl/A, where R is resistance, p is the material's resistance in ohms, l is the length, and A is the cross sectional area in m^2.
As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases
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