Question

State factors on which strength of magnetic fields in a circular current carrying coil depends.

Answer 1

Factors on which strength of magnetic fields in a circular current carrying coil depends :-

1. Magnetic field strength is directly proportional to the magnitude of current through in the conductor. greater the current in the conductor, stronger will be the magnetic field produced.$B\propto I.$
2. Magnetic field strength is inversely proportional to the distance from the wire, greater the distance from the current carrying conductor, weaker will be the magnetic field.$B\propto \frac{1}{r}.$