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JEE Main20252 Apr 2025Evening ShiftPhysicsUnits and DimensionsActual

If ₀ and ₀ are the permeability and permittivity of free space, respectively, then the dimension of ( 1 ₀ ₀ ) is :

Options

  1. AL / T ^2
  2. BL^2 / T^2
  3. CT^2 / L
  4. DT ^2 / L ^2

Correct answer

B. L^2 / T^2

Step-by-step solution

C = 1 ₀ ₀ 1 ₀ ₀ = C ^2= L ^2 ~T ⁻²

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