Task 30988.
Two sources with EMF E1 = 2.1 V and E2 = 1.5 V are connected by the same poles and connected to an external voltage R = 12 Ohm. The internal resistance of the sources is r1 = 11 Ohm and r2 = 15 Ohm. Currents in the branches of the circuit I1, I2, I3. Determine the current I in the circuit.
Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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