A wire of radius R = 4 mm carries a uniformly distributed current of 2 A.The magnetic field inside the wire at a radial distance R/2 from the axis of the wire is A)2 * 10^-4 T. B)5 * 10^-5 T. C)1 * 10^-4 T. D)1 * 10^-5 T.

Question

Quizplus · Accepted Answer

The magnetic field inside a wire carrying a uniformly distributed current is given by B = (μ₀ * I * r) / (2π * R²), where r is the radial distance from the axis. Substituting the given values, B = (4π * 10⁻⁷ T*m/A * 2 A * 2 mm) / (2π * (4 mm)²) = 5 * 10⁻⁵ T.

A Wire of Radius R = 4 Mm Carries a Uniformly