Problem 31615.
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Problem 31615.
A current of density 1 A / mm ^ 2 flows along the copper wire. To estimate, what way the electron will pass, having moved along a wire on distance of 10 mm. Assume that the concentration of free electrons in copper is 10 ^ 29 m ^ -3, and the average speed of chaotic thermal motion of electrons is 100 km / s.
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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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