PHYS 122 Chapter Notes - Chapter 31: Continuity Equation, Short Circuit, Electrical Network
Document Summary
For a light bulb to light you need to connect two contacts on the light bulbs. The two contacts are the threaded metal casing and a metallic foot that is separated by a casing. There is a tungsten filament which current passes through and makes it white glow and hot. A bulb wont glow if a connection is broken. In order for the bulb to glow both contacts must be connected, if path. 2. of connection is broken anywhere the bulb wont light up. A light bulb generates light and thermal energy. The wires connecting the bulb don t get hot. A bulb left lit over a long time will run out as the batter runs out. Electric circuit: an interconnection of electrical components called circuit elements. Any closed path of a circuit is called a loop. In a circuit electrical potential energy is always converted to some other form.
