lights

This is a picture of a compact florescent light bulb in my house. It is more energy efficient than it counterpart the incandescent light bulb. The incandescent light bulb differs because it uses the high resistance of the Tungsten wire to produce heat and light. The florescent light works with gas so it uses less energy. A light bulb works because it completes the circuit. When you plug a light bulb into the socket, 120 Volts difference travels through the circuit until the light bulb takes the volts and turns it into power. (P=IV) The current in the wire depends on how many other things are connected to the power source. Because it is hooked up in parallel, the current will increase with the amount resistors are hooked up.