8.5 Voltage Sources

Voltage Sources

Voltage is the amount of energy per unit of charge. Duration: 0:39.

Flow of Charge and Electric Current

Within a circuit, charge flows from a higher to lower electric potential. Duration: 3:55.

Conductors and Insulators

Materials permitting the flow of electric charge and heat are conductors. Materials inhibiting such flow are insulators. Duration: 3:35.