| 摘要 |
The proposed device for demonstrating Ohm law contains loading elements, a power-supply source, and a unit for switching the voltage steps of the power-supply source. As the loading elements, electric lamps are used. The use of electric lamps provides the possibility of visually demonstrating the dependence of the light intensity, which is proportional to the current through the lamps, on the voltage of the power-supply source.
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