If we have a solenoid and a magnetic passes through it , it will produce a dc voltage in the wire . If we want to calculate the power , we find out the current using ohms law then we use P=VI . I know there is power loss due to the resistance ( joule effect) . But what about the opposing magnetic field due to current in the wires (lenz's law) , does it contribute in the power loss ?(adsbygoogle = window.adsbygoogle || []).push({});

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# Power and magnetism

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