Name one device which works on the magnetic effect of current.

When is the force experienced by a current-carrying conductor placed in a magnetic field largest ?

In a statement of Fleming's left-hand rule, what do the following represent?

(a) direction of centre finger.

(b) direction of forefinger.

(c) direction of thumb.

Name the device which converts electrical energy into mechanical energy.

A motor converts one form of energy into another. Name the two forms.