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    Electric and Magnetic Fields

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    A magnetic field has a magnitude of 12 T. What is the magnitude of an electric field that stores the same energy per unit volume as this magnetic field?

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    Solution Preview

    From the treatment of Electric and Magnetic fields, we can arrive at the following generic results :

    Energy density (energy per unit volume) for magnetic ...

    Solution Summary

    Energy density (energy per unit volume) for magnetic field, n_b = 1/2 * B^2/u. Energy density (energy per unit volume) for electric field, n_e = 1/2 * eps*E^2. See solution for full calculations and answer.