The electrostatic force on an object equals this quantity times the external electric field.
The time derivative of this quantity's density equals the negative divergence of current density. The energy stored in a capacitor equals one half times this quantity squared, divided by capacitance. The magnetic force on a moving particle is equal to this quantity times the cross product of (*) velocity and magnetic field by the Lorentz force law. Capacitance is equal to this quantity divided by voltage. The electrostatic force on an object equals this quantity times the external electric field. For 10 points, name this quantity, often symbolized by the letter Q, which is measured in Coulombs.
The time derivative of this quantity's density equals the negative divergence of current density.
electric charge [prompt on "Q"]