Question

The dimensions of angular momentum/ magnetic moment are

• A. $\left[M{A}^{-1}{T}^{-1}\right]$
• B. $\left[M^{-1}A{T}^{-1}\right]$
• C. $\left[MA{T}^{-1}\right]$
• D. $\left[M{A}^{-1}T\right]$

Answer 1

The correct option is A $\left[M{A}^{-1}{T}^{-1}\right]$

Angular momentum
$=l\omega =\left[M^1{L}^2{T}^{-1}\right]$

Magnetic moment

$=\left[A{L}^2\right]$

$\therefore =\frac{Angularmomentum}{Magneticmoment}$
$=\frac{\left[M^1{L}^2{T}^{-1}\right]}{\left[A{L}^2\right]}=\left[M{A}^{-1}{T}^{-1}\right]$.