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Electrical Technology 2020-2-14

2020-02-14View Original

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True or False question: Please answer whether it is correct or incorrect. 3 points for a correct answer, 2 points for an incorrect answer, and 5 points for a detailed explanation of the reason. The method of adjusting the speed by changing the resistance in the armature circuit of a DC motor belongs to stepless speed control.
Reply #22020-02-14
Error: The method of adjusting the speed by changing the resistance in the armature circuit of a DC motor belongs to stepped speed control, with a typical speed ratio of around 2:1~

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