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The dimensional formula for permeability μ is given by

1. [ML⁻²A⁻²]
2. [M⁰L⁰T⁰]
3. [M⁰L⁻¹A²]
4. None of the above

Correct answer: [ML⁻²A⁻²]

Solution

The permeability μ has the dimensional formula [ML⁻²A⁻²], derived from the relationship between magnetic field, current, and force in Ampere's law.

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