What is the acceleration when a bar magnet is dropped throug a non conducting ring
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The direction of an induced current is so as to oppose the downward motion of the magnet. Hence, the acceleration of the falling magnet is less than that due to gravity. If the ring is cut, an induced emf exists but the induced current is zero
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A rapidly changing magnetic field induces electric currents to flow in a closed circuit. When the first pole(S) falls through the coil EMF increases to a level then decreases. When the middle of the magnet falls throught the coil, the EMF is at a minimum. No lines of force are being cut by the coil.
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