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Photo Credit: Physics Girl

Have you ever wondered why an outlet sparks when you unplug an electronic device? Physics Girl runs us through the science behind this phenomenon. 

Her demonstration includes cutting the electricity to an inductor, which provides a significant spark. This is known as an inductive kickback or a back EMF. It might not be the same as the little zap you see when you pull the plug on your toaster, but the science behind it is the same.

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