engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Electromagnetic Theory

The magnitude of the magnetic field at a distance R from a long, straight wire carrying a current i is given by:

1
B = μ0i × 2πR
2
\(B=\dfrac{i}{\mu_o2π R}\)
3
B = \(\dfrac{2\pi R}{i}\)
4
B = \(\dfrac{i}{\pi R}\)
5
\(B=\dfrac{\mu_oi}{2π R}\)
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