We can reduce eddy currents in the core of a transformer by:

The core of any transformer is laminated so as to

$A$ bar magnet is released from rest coaxially along the axis of a very long,vertical copper tube. After some time,the magnet:

When a bar magnet falls through a long hollow metal cylinder fixed with its axis vertical,the final acceleration of the magnet is

The core used in transformers and other electromagnetic devices is laminated to

Consider a metallic pipe with an inner radius of $1 \ cm$. If a cylindrical bar magnet of radius $0.8 \ cm$ is dropped through the pipe,it takes more time to come down than it takes for a similar unmagnetised cylindrical iron bar dropped through the metallic pipe. Explain.