The Figure Shows the Cross-Section of a Hollow Cylinder of Inner

Multiple Choice

The figure shows the cross-section of a hollow cylinder of inner radius a = 5.0 cm and outer radius b = 7.0 cm. A uniform current density of 1.0 A/ cm² flows through the cylinder parallel to its axis. Calculate the magnitude of the magnetic field at a distance of d = 10 cm from the axis of the cylinder. (μ₀ = 4π × 10^-7 T ∙ m/A)

A) 0.00 T
B) 1.5 × 10^-4 T
C) 2.5 × 10^-4 T
D) 4.5 × 10^-4 T
E) 0.50 × 10^-4 T