The racial makeup of the county was 90.00% White, 3.65% Black or African American, 0.18% Native American, 3.97% Asian, 0.04% Pacific Islander, 0.63% from other races, and 1.53% from two or more races. 1.58% of the population were Hispanic or Latino of any race.
Print. An electric circuit is like a pathway made of wires that electrons can flow through. A battery or other power source gives the force (voltage) that makes the electrons move. When the electrons get to a device like a light bulb, your computer, or a refrigerator, they give it the power to make it work.The word âcircuitâ sounds like âcircle,â and a circuit needs to be circular to work. battery or other power source gives the force (voltage) that makes the electrons move. When the electrons get to a device like a light bulb, your computer, or a refrigerator, they give it the power to make it work.
A transistor is a miniature electronic component that can do two different jobs. It can work either as an amplifier or a switch: 1  When it works as an amplifier, it takes in a tiny electric current at one end (an input current) and produces a much bigger electric current (an output current) at the other.2  Transistors can also work as switches.ormally, the holes in the base act like a barrier, preventing any significant current flow from the emitter to the collector while the transistor is in its off state. A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon.