Question

Unit of magnetic moment is

• A. (a) $Ampere ⥂ - ⥂ metre^{2}$
• A. (b) $Ampere ⥂ - ⥂ metre$
• A. (c) $Weber ⥂ - ⥂ metre^{2}$
• A. (d) $Weber ⥂ ⥂ / ⥂ metre$

Answer 1

(a)

Sol. M = Pole strength $\times$ length

= $amp - metre \times metre$ $= amp - metre^{2}$