IOM 2021, Блиц — Задача 49

The Blitz-contest of IOM-2021

Условие

A cylindrical copper wire (length $l = 1$ m, diameter $d = 2$ cm, $\rho_c = 0.017$ Ω mm$^2$/m) is moved into a region containing a homogenous magnetic field $B = 0.3$ T with velocity $v = 5$ m/s perpendicular to the B-field. Compute the ratio between the induced current inside the wire and the current in a DC circuit consisting of a battery with $U = 1000$ V and a resistance of $R = 2$ Ω. Round the answer to an integer.

Отговори

Решение

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Оригинал в Архива: iom-2021-blitz-tasks-eng.pdf · официални решения: iom-2021-blitz-answers-eng.pdf