Superconductors Can Carry Very Large Currents with No Resistance

question 57

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

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