Question

Which part of the current carrying circular loop represents the strongest magnetic field?

• A. A point on the circumference of the loop.
• B. A point outside the loop.
• C. Centre of the loop.
• D. A point close to the centre of the loop.

Answer 1

The correct option is C Centre of the loop.

When there is a current carrying circular loop, direction of magnetic field lines can be obtained by right-hand thumb rule as shown in the figure. As we can see magnetic field strength inside the loop is adding up and based on experimental results its value is highest at the centre of the circular loop.