A current flows through the coil, creating a magnetic field, the energy of which is 0.5 J. The magnetic flux through the coil

A current flows through the coil, creating a magnetic field, the energy of which is 0.5 J. The magnetic flux through the coil is 0.1 Wb. Determine the amperage.

W = 0.5 J F = 0.1 Wb I =?
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W = Ф * I / 2 (from the formulas W = L * I² / 2 and L = ΔФ / ΔI)
I = 2 * W / F = 2 * 0.5 / 0.1 = 10 A

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