Electric potential can be thought of as potential energy per unit charge.
By the charge density we mean the per unit volume.
The current is the charge flow per unit time.
Selvanthurai was in charge of the Tamil Tigers' financial unit.
Ms. Ling is a vice president in charge of Current's Vanguard unit.
He gave his name to the 'farad', originally describing a unit of electrical charge but later a unit of electrical capacitance.
unit in charge of construction
charge discriminator unit