Question
Wed November 16, 2011 By: Smit Modi

if magnet is dropped through a long thick walled vertical copper tube,the magnet attains constant velocity after sometime .explain.

Expert Reply
Tue November 22, 2011
due to eddys current set up in the copper tube, that current will oppose the motion.so, the downward force due to weight will be balanced by the opposing force.net force becomes 0. so magnet drops with constant velocity.
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