Teaching MPPSC Assistant Professor Mock Test Series 2025 Physics Moving Charges and Magnetism A Current-Carrying Coil as a Magnetic Dipole
A circular loop has radius 'r', is placed on the x-z plane with its center at the origin, and is carrying current 'I' in an anti-clockwise direction when seen from a point on the +y-axis. The magnetic moment of the loop is
1
\(πIR^2 \frac{ \hat j +\hat k }{\sqrt 2}\)
2
\(πIR^2 \frac{ \hat i +\hat j }{\sqrt 2}\)
3
2πIR ĵ
4
πIR2 ĵ