Задача id9638

In the circuit, the diagram of which is shown in Fig., the resistances of resistors R1, R2, R3 are equal to 2, 4 and 6 Ohms, respectively; The emf of the current source is ξ = 10 V, its internal resistance is r = 0.4 Ohm. What will the ammeter show? Neglect the resistance of the ammeter.

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