The average radius of an air cored made toroid is 0.1 m and it has 500 turns. If it carries 0.5 ampe
Channel: Doubtnut
Date: 2020-08-30

The average radius of an air cored made toroid is 0.1 m and it has 500 turns. If it carries 0.5 ampere current, then the magnetic field inside it is :