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The dimensional formula for permeability µ is given by

1. MLT^{– 2}A^{– 2}
2. M⁰L¹T
3. M⁰L²T^{– 1}A²
4. None of the above

Correct Option: A

μ =	B	; [B] = MT^{– 2} A^{– 1}
	nI

[n] = L^{– 1} , [I] = A

	B		= [MLT^{– 2}A^{– 2}]
	nI