When a current passes through a circular coil, it produces a magnetic field.
Our apparatus consists of a 1mm diameter Copper wire, which is mounted on a plastic base and is wound around the same into a coil with 94 turns.
A plastic sheet passes through the centre of this coil.
The entire set up is mounted on a wooden base.
To understand the nature of the magnetic field produced by a circular current carrying coil:
Therefore students can correlate the visual presentations obtained, with the right hand rule, to determine the magnetic field at the centre of the coil.