The resistance of a wire is 5 Ω. Its new resistance in ohm, if stretched to 5 times of its original length will be :
Question
Solution 1
The resistance (R) of a wire is directly proportional to its length (L) and inversely proportional to its cross-sectional area (A). This relationship is given by the formula:
R = ρ * (L / A)
where ρ (rho) is the resistivity of the material of the wire.
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