A flat coil of turns has radius and carries a current of

PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A flat coil of

200

turns has radius

10\,\text{cm}

and carries a current of

0.50\,\text{A}

. Determine the magnitude of the magnetic field on its axis at a point

20\,\text{cm}

from the centre of the coil.