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→About Back emf
===About Back emf===
*[[Back EMF|Back emf]] occurs due to [[Lenz's Law|Lenz's Law]], which states that the direction of the [[Electromagnetic *Induction|induced]] [[Electromotive Force|emf]] is such that it opposes the change causing it.
*In an [[Motor|electric motor]], [[Back EMF|back emf]] increases with the [[speed]] of the [[motor]].
*[[Back EMF|Back emf]] limits the current flowing through the [[motor]] as the [[speed]] increases.