The movement of electrons through a conductor also depends upon the resistance that the conductor offers to the flow of current.
Electrical resistance depends upon the composition of the conductor and is measured in ohms.
Resistance, R, also increases as conductors are thinner, longer, and hotter. Ohm s law states that the amount of current in an electricl circuit is directly proportional to the voltage applied across the circuit and inversely proportional to the resistance of the circuit. This formula shows that as voltage in a circuit increases, the flow of current increases. By contrast, as resistance increases, current flow decreases. The electric current in a circuit flows along the path of least resistance.