The dimensions of magnetic intensity are

The dimensions of magnetic intensity are
  1. $\left[\begin{array}{llll}{\left[\mathrm{L}^{1}\right.} & \mathrm{M}^{0} & \mathrm{~T}^{1} & \mathrm{I}^{1}\end{array}\right]$
  2. $\left[\begin{array}{lll}\mathrm{L}^{1} & \mathrm{M}^{0} & \mathrm{~T}^{0} & \mathrm{I}^{-1}\end{array}\right]$
  3. $\left[\begin{array}{lll}\mathrm{L}^{-1} & \mathrm{M}^{0} & \mathrm{~T}^{0} & \mathrm{I}^{1}\end{array}\right]$
  4. $\left[\begin{array}{llll}\mathrm{L}^{2} & \mathrm{M}^{1} & \mathrm{~T}^{0} & \mathrm{I}^{1}\end{array}\right]$

Solution

The dimensions of magnetic intensity (denoted as $H$ ) are: - Magnetic intensity is defined as the force per unit current per unit length. - Its dimensions are: $[H]=\frac{M}{A T}$ where $M$ is mass, $A$ is electric current, and $T$ is time.

Asked in: MHT CET 2020 (12 Oct Shift 2)

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