Relative permeability of vacuum is
A. 1
B. 1 H/m
C. 1/43π
D. 1/4π x 10-7 H/m
Answer:A
Relative permeability of vacuum is
A. 1 B. 1 H/m C. 1/43π D. 1/4π x 10-7 H/m
Explanation: The relative permeability (μr) of a substance is the ratio of magnetic permeability (μ) of the substance to the permeability of free space (μ0)