Electromagnetic Induction

Whenever you go shopping and if you’re cashless, your parents use cards; the shopkeeper always scans or swipes the card. He never taps the card or takes a photo of it. Why does he swipe/scan the card? And how does this swiping deduct money from the card? Well, this happens because of a phenomenon called as electromagnetic induction.Let us study the science behind electromagnetic induction further along with lenz law.



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