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March 29, 2024, 10:24:37 am

Author Topic: Question about Lenz’s law in DC motors  (Read 2213 times)  Share 

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CorkedBoard

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Question about Lenz’s law in DC motors
« on: July 24, 2021, 11:58:39 am »
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Just wondering,
I know that in AC and DC generators, the movement of the current is used to create an opposed rotational force to what is causing it to rotate such as a wind turbine (due to Lenz’s Law).

What I am confused about is whether this also applies to DC motors. Does Lenz’s law apply to DC motors is it not relevant to DC motors?
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Re: Question about Lenz’s law in DC motors
« Reply #1 on: July 24, 2021, 12:15:46 pm »
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Lenz's law will always apply in some capacity if there is a current induced due to a change in a magnetic field, primarily due to (and/or as an extension to the Law of Conservation of Energy).

It might be helpful to read about back EMF (and deduce for yourself why this works the way it does).
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