Question

The dimensional formula of μ₀ is:

Options

• \[[M\,L\,T^{-1}\,A^{-1}]\]

• \[[M\,L\,T^{-2}\,A^{-2}]\]

• \[[M\,L^2\,T^{-2}\,A^{-2}]\]

• \[[M\,L\,T^{-2}\,A^{-1}]\]

Answer 1

Since μ₀ has units of N/A², its dimensional formula is [M L T⁻² A⁻²]. The newton contributes M L T⁻² and the per-ampere-squared contributes A⁻².