The core of any transformer is laminated so as to

$A$ bar magnet falls from a height $h$ through a metal pipe. Its acceleration after coming out of the pipe is:

The small energy losses in transformers due to eddy currents can be reduced by

When a small magnet is allowed to fall through an aluminium pipe,it falls with an acceleration less than $g$. Why?

What is electromagnetic damping?

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.