Задача 31523.

To a power supply with EMF 5,5 B and the internal resistance of 1 ohm hooked coil wound with wire length of 20 m and a cross-section of 1mm2. In circuit current 0.5A went. Find: the resistivity of the wire material; tension and density of the current in the wire; the specific heat capacity of the current in the wire.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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