Two groups of three series-connected elements are connected in parallel. The emf of each element is 1.2 V, the internal resistance is 0.2 Ohm. The resulting battery is shorted to an external resistance of 1.5 ohms. Find the strength of the current in the external circuit.

Task 31680. Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.

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