AP EAMCET202423 May 2024Morning ShiftPhysicsUnits and DimensionsActual
Which of the following is not a unit of permeability
Options
- AHenry meter-1
- BWeber ampere ⁻¹ meter ⁻¹
- COhm second meter ⁻¹
- DVolt second meter ⁻¹
Correct answer
D. Volt second meter ⁻¹
Step-by-step solution
Self inductance, L = ₀ ~N ^2 ~A 1 Unit of _ o = H m m ^2 = H m ⁻¹ Also, L = I = WbA ⁻¹ Unit of _ o = WbA ⁻¹ ~m ~m ^2 = WbA ⁻¹ ~m ⁻¹ Also, L = e dI dt = V As ⁻¹ = VA ⁻¹ ~s = s Unit of ₀= VsA ⁻¹ ~m ~m ^2 = VsA ⁻¹ ~m ⁻¹= s m m ^2 = sm ⁻¹