# Electric and Magnetic Fields

Not what you're looking for? Search our solutions OR ask your own Custom question.

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?

Â© BrainMass Inc. brainmass.com September 28, 2022, 9:55 pm ad1c9bdddfhttps://brainmass.com/physics/electricity-magnetism/electric-and-magnetic-fields-15514

#### 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.

$2.49