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AP Physics C: E&M
13.4 Inductance
AdvancedMCQMathematical23.8k
Cross section of the wire showing a thin cylindrical shell of radius r.
Cross section of the wire showing a thin cylindrical shell of radius r.
A long, straight cylindrical wire of radius \(R\) carries a steady total current \(I\) distributed uniformly across its circular cross section. The permeability of free space is \(\mu_0\). Which of the following expressions represents the total magnetic energy stored per unit length inside the volume of the wire?

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