engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Moving Charges and Magnetism Magnetic Field due to a Current Element
The ratio of the magnetic field at the centre of a current carrying coil of the radius a and at a distance 'a' from centre of the coil and perpendicular to the axis of coil is
1
\( \dfrac{1}{\sqrt{2}} \)
2
\( \sqrt{2} \)
3
\( \dfrac{1}{2\sqrt{2}} \)
4
\( 2\sqrt{2} \)