For 10 points, name this amount of energy stored in a system.
One type of this quantity can be calculated as one-half the volume integral of the H-vector dotted with the B-vector. That type is periodically exchanged with another type of this quantity in an LC circuit. An electric field E contributes a density of this quantity equal to "one-half epsilon-nought times E-squared." A capacitor holding a charge Q has a value of (*) "one-half Q-squared over C " for this quantity. For a single charge, this quantity equals the charge times the voltage at which it is held, and it can be calculated as the work required to move that particle into its position. For 10 points, name this amount of energy stored in a system.
One type of this quantity can be calculated as one-half the volume integral of the H-vector dotted with the B-vector.
potential energy [prompt on energy until mentioned; do not accept or prompt on “(electric) potential”] &lt;SE&gt;