Question: A 100 A current circulates around a 2.0-mm-diameter superconducting ring. a. What is the rings magnetic dipole moment? b. What is the on-axis magnetic field

A 100 A current circulates around a 2.0-mm-diameter superconducting ring.
a. What is the ring’s magnetic dipole moment?
b. What is the on-axis magnetic field strength 5.0 cm from the ring?

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