Problem 31167.
An aluminum wire 5 m long and 1 mm in diameter is covered with 1 cm thick insulation. The wire is bent in half, with both halves adjoining each other. What is the effect of one half of the wire on the other, if a current difference at the ends of the wire creates a potential difference of 1 V?
A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the formula and the answer.
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