JEE Advanced · Electricity and Magnetism · Quiz
5 real JEE Advanced questions on Electricity and Magnetism. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
HARDA flat circular coil with N turns is wound tightly in the form of a spiral with inner radius 2a and outer radius 3a. When a steady current I flows through the coil, the magnitude of the magnetic field at the center is: