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Question
What is the strength of the magnetic field created by the orbiting Moon, at the center of the orbit, in the system in the previous problem? (Treat the charge going around in orbit as a current loop.) How does this compare with the strength of the Earth's intrinsic magnetic field?
$4.0\times 10^{-8}\textrm{ T}$
This is smaller than Earth's intrinsic magnetic field by a factor of $0.001$.
Solution Video