nursing AIIMS BSc Nursing 2025 Mock Test Series Physics Moving Charges and Magnetism Magnetic Field on the Axis of a Circular Current Loop
An electron with charge 'e' is moving in a circular orbit of radius r and makes n rotations per second. The magnetic field produced at the center varies with the charge of an electron as ________
1
\(B \propto e\)
2
\(B \propto e^2\)
3
\(B \propto {1 \over e}\)
4
\(B \propto {1 \over e^2}\)