Question

μ₀ plays the same role for magnetic fields that ______ plays for electric fields.

विकल्प

• \[c\ (\text{speed of light})\]

• \[\mu_r\ (\text{relative permeability})\]

• \[\varepsilon_0\ (\text{permittivity of free space})\]

• \[e\ (\text{elementary charge})\]

Answer 1

The permeability of free space μ₀ plays the same role for magnetic fields that ε₀ (the permittivity of free space) plays for electric fields. Both are fundamental constants of the vacuum in their respective branches.