The average electrical current I ave is the rate at which charge flows, given by I ave = Δ Q Δ t , where Δ Q is the amount of charge passing through an area in time Δ t The direction of conventional current is taken as the direction in which positive charge moves.

The instantaneous electrical current, or simply the current I , is the rate at which charge flows. In a simple direct-current (DC) circuit, this will be from the positive terminal of the battery to the negative terminal

resistance — electric property that impedes current; for ohmic materials, it is the ratio of voltage to current, R = V / I. average electrical current I ave — the rate at which charge flows, given by I ave = Δ Q Δ t , where Δ Q is the amount of charge passing through an area in time Δ t. conventional current — current that flows through a circuit from the positive terminal of a battery through the circuit to the negative terminal of the battery. circuit — complete path that an electrical current travels along.