IOM 2019, Блиц — Задача 14

OLYMPIAD OF METROPOLISES, Moscow, September 2, 2019 · 2 септември 2019 г.

Условие

The conductors of a power line have an effective resistance of $R = 200$ Ohm. Electric power of $P = 40$ MW is transmitted through the power line. How many megawatts (MW) of thermal losses are released due to the heating of the power line? The voltage of the power line is $U = 400$ kV.

The answer should be given in the SI units unless otherwise stated. If the numerical result turns out to be an integer, it should be given as the answer. Otherwise round the result to the first decimal. $g = 10\ \mathrm{m/s^2}$.

Решение

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Оригинал в Архива: blitz-en-all-task-final.pdf