For a given material

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

For a given material, if the length of a conductor is doubled while its cross-sectional area remains unchanged, the resistance becomes (a) 12 of its original value\dfrac{1}{2}\text{ of its original value} (b) 4 times its original value4\text{ times its original value} (c) 2 times its original value2\text{ times its original value} (d) Unchanged

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