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12 Rub.

Task 2.34

The temperature of the tungsten filament of the electric lamp is 2000 ° C, the diameter is 0.02 mm, the current in it is 4 A. Determine the field strength in the filament.

The temperature of the tungsten filament of the electric lamp is 2000 ° C, the diameter is 0.02 mm, the current in it is 4 A. Determine the field strength in the filament.

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