Superconductors Can Carry Very Large Currents with No Resistance

question 60

Multiple Choice

Superconductors can carry very large currents with no resistance.If a superconducting wire is formed into a solenoid of length 74.6 cm with 660 turns,what is the magnetic field inside the solenoid when the current is 6.5 kA? (µ₀ = 4π × 10−⁷ T⋅m/A)

• A) 0.58 T
• B) 4.02 T
• C) 14.5 T
• D) 7.23 T
• E) ​22.7 T

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Definitions:

Weighted-Average Method

An inventory costing method that assigns a cost to inventory items based on the average cost of all similar items purchased or produced.

Equivalent Units

A concept in process costing that quantifies the amount of materials or labor required to complete a unit of production, adjusting for partial completion.

Processing Department

A specific department in a manufacturing operation where a set of processes or operations are performed on materials to convert them into finished goods.

Conversion Costs

The combined costs of direct labor and manufacturing overhead, representing the costs necessary to convert raw materials into finished goods.