Задача 31213.

Determine the current in each cell and the voltage at the terminals of the rheostat, if E1 = 8V, r1 = 1 Ω, E2 = 4 V, r2 = 0.5 Ω and r = 50 Ω.

A detailed solution with a brief entry of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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