A small piece of information that is persisted betwwen multiple client requests is

A small piece of metal wire is dragged across the gap between the pole pieces of a magnet in 10 s. The magnetic flux between the pole pieces is 8 xx 10^(-4) Wb. Find the magnitude of induced e.m.f.

The property of attracting small pieces of iron is referred to as magnetism.The minerals existing this influence is called as

A small piece of unmagnetised substance gets repelled, when it is brougth near a powerful magnet. The substance can be _________.

A small piece of aluminium metal was placed in a beaker containing a greenish solution. After some time a grey coating was observed on the aluminium piece. The greenish solution is most likely to be: