Practice question

**Magnetic dipole moment** quantifies strength and orientation of magnet, m = 2l × q_m where q_m pole strength. Field line concept visualizes B, with closed nature reflecting absence of magnetic monopoles, explaining non-intersection and continuity. The density of magnetic field lines indicates the field strength. Near the poles, the field is strongest because the lines converge or diverge there, reflecting the concentration of magnetic influence at these points. Substituting values gives The field strength is greatest there, which matches expected magnitude for this magnetic configuration, confirming dipole field dependence on m/r³ and torque relation τ = m B sinθ.