Current electricity

3. The unit of electrical resistance, symbolized by the Greek letter omega (Ω). It measures how much a material impedes the flow of electric current.
5. Short for amperes, the unit of measurement for electric current. One ampere is equal to the flow of one coulomb of charge per second past a given point in a circuit.
7. Electricity in motion, typically referring to the flow of electric charge through a conductor. It is measured in units called amperes (amps) and is the basis for most electrical systems.
10. The electrical potential difference between two points in a circuit, which determines the force with which electric charges move between those points. It is measured in volts (V) and is a measure of electrical pressure.
11. A device used to open or close an electrical circuit, controlling the flow of electricity. It can interrupt or allow the passage of current through a circuit.

1. A material or substance that allows electric charge to flow through it easily. Metals such as copper and aluminum are commonly used as conductors due to their high conductivity.
2. A component in an electrical circuit that resists the flow of electric current. It is designed to have a specific resistance value and is often used to control the amount of current in a circuit or to divide voltage.
4. The build-up of electric charge on the surface of objects due to contact with other surfaces. This charge remains in one place until it is discharged, often resulting in sparks or other phenomena.
6. A closed loop or pathway through which electric current can flow. It typically consists of components such as energy sources, conductors, switches, and loads arranged to perform a specific function, such as providing power to devices.
8. Any substance or phenomenon that can provide power or electricity. Common energy sources include fossil fuels (such as coal, oil, and natural gas), renewable sources (such as solar, wind, and hydroelectric power), and nuclear energy.
9. The portion of an electrical circuit that consumes power and performs work. It can be a device, appliance, or component that converts electrical energy into another form, such as light, heat, or motion.