# Use of eddy currents is done in the following except

## (a) moving coil galvanometer (b) electric brakes (c) induction motor (d) dynamo

Answer is option (d). Use of eddy current is done except in dynamo. An Eddy current can be produced by both electromagnets and permanent magnets, as well as transformers.  Eddy currents are an electric field which is generated by a magnetic field, but the strength of an eddy current field is proportional to the strength of the magnetic field