Ohm's Law - relationship between voltage, current and resistance in D. C. circuit.
欧姆定律—在直流电路中，电压，电流与电阻的关系。
The red and the voice prompts that circuit resistance is too high or too low.
红灯和声音提示表示电路阻值过高或过低。
Design the circuit diagram and determine the resistance of the single element.
设计线路图，确定单支元件的最阻。
Design the circuit diagram and determine the resistance of the single element.
设计线路图，确定单支元件的最阻。
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