A Superconducting Wire Carries a Current of 10⁴ A

Multiple Choice

A superconducting wire carries a current of 10⁴ A.Find the magnetic field at a distance of 0.25 m from the wire.(µ₀ = 4π × 10−⁷ T⋅m/A)

A) 1.6 × 10−² T
B) 2 × 10−³ T
C) 8 × 10−³ T
D) 3.2 × 10−² T