1.

Give the dimensional formula for magnetic permeability of free space.

A. [M L T<sup>-2</sup> A<sup>-2</sup>]
B. [M<sup>2</sup> L T<sup>-2</sup> A<sup>-2</sup>]
C. [M L<sup>2</sup> T<sup>-2</sup> A<sup>-2</sup>]
D. [M<sup>-1</sup> L T<sup>-2</sup> A<sup>-2</sup>]
Answer» B. [M<sup>2</sup> L T<sup>-2</sup> A<sup>-2</sup>]


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