Which one of the following is the CORRECT value of magnetic permeability in free space?

1
\(4\pi \times {10^{ - 4}}\)
2
\(4\pi \times {10^{ - 5}}\)
3
\(4\pi \times {10^{ - 7}}\)
4
\(4\pi \times {10^{ - 3}}\)

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