On what factors and how does the strength of the magnetic field due to current-carrying circular coil depend.
Step-1: Magnetic Field
The magnetic field is the force of magnetism that acts on a region around a magnetic material or a moving electric charge.
Step-2: Factors of which it depends
There are three main factors.
(a) Current flowing through the coil.
It is known that magnetic field strength is directly proportional to the magnitude of the current.
(b) Radius of the circular coil.
The magnetic field strength produced by a current-carrying circular coil is inversely proportional to the circular coil's radius.
As a result, a smaller coil will produce a larger magnetic field for the same current.
(c) Number of turns of wire in the circular coil.
A current-carrying circular coil's magnetic field intensity is precisely proportional to the number of turns of wire in the circular coil. As a result, a coil with many turns has a high magnetic field strength.