Why does the fan continue to move for sometime even after it has been switched off?
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Because of retardation
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according to law of inertia, the body remains in motion till the time an external force stops it.
so, the fan remains In motion and so, remains in inertia of motion. but when it is switched off, the current is not there but the fan remains in inertia of motion and takes time to come to rest due to air friction which slowers it.
so, the fan remains In motion and so, remains in inertia of motion. but when it is switched off, the current is not there but the fan remains in inertia of motion and takes time to come to rest due to air friction which slowers it.
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