Question

The intensity of the magnetic field due to a current carrying coil is maximum at___
(a) A point on any radial line (b) The centre of the coil (c) Any point on the axis (d) Any point on the circumference

Answer 1

Answer:

(a) A point on any radial line

Explanation:

The strength of the magnetic field is inversely proportional to its origin point.

The stronger the magnetic field is ,the nearer it is from the origin.

But here we have a current carrying loop. So the origin will be the center of the loop.

There is only one point possible that is nearest to the loop and it is the origin itself.

That's why the magnetic field is maximum at the center of the loop.