By: Courtney Ishmael and Bailey Frasier
Electrical devices such as lights, clocks, steros, televisions, etc. rely on a source of electrical energy and wires to complete an electrical circuit.These circuits typically include a voltage source, a conductor such as a wire, and one or more devices that use the electrical energy to do work.
Have you ever used an electrical hair dryer? This device contains an electrical circuit. The hair dryer must be plugged into an outlet in order to operate. A generator at a power plant produces a voltage difference across the outlet, causing charges to move when the circuit is complete. The dryer and the circuit contain conducting wires to carry current. When the hair dryer is turned on, it converts the electrical energy from the circuit to mechanical and thermal energy. Unplugging the hair dryer or turning off the switch breaks the path of the current because you have opened the circuit. A complete circuit must be made in order to use electrical energy.
There are many different kinds of circuits.