Lenz's law applies to coils by extending the principles from a single loop to multiple loops, with the current direction remaining consistent across each loop. The relative position of the magnetic poles and the coil determines the direction of the induced current, similar to a single loop scenario. In a coil, the induced electromotive force (emf) is additive, resulting in a total voltage that is N times greater than that of a single loop, where N is the number of turns in the coil. Consequently, if external resistance is the only factor, the current in the coil will also be N times that of a single loop. Understanding these concepts clarifies how Lenz's law operates in more complex configurations like coils.
