Superconductors Can Carry Very Large Currents with No Resistance

Multiple Choice

Superconductors can carry very large currents with no resistance.If a superconducting wire is formed into a solenoid of length 20.0 cm with 691 turns,what is the magnetic field inside the solenoid when the current is 5.38 kA? (µ₀ = 4π × 10−⁷ T⋅m/A)

A) 1.86 T
B) 0.934 T
C) 46.7 T
D) 23.4 T
E) 73.4 T