Electrical Vocabulary

3. A measure of how much a material opposes the flow of electric current; measured in ohms.
5. A closed path through which electric current can flow.
6. The rate at which electrical energy is transferred by an electric circuit; measured in watts.
8. The unit of electrical resistance.
9. The unit of electric potential or potential difference.
10. A property of matter (measured in coulombs) that causes it to experience a force when placed in an electric or magnetic field.
13. The difference in electric potential (voltage) between two points in a circuit.
15. An electrical component that stores and releases electric charge.
17. The flow of electric charge through a conductor, measured in amperes.
18. An electric current that reverses direction periodically.
20. The electric potential difference between two points; drives current through a circuit.

1. A circuit in which the components are arranged in a single path, so current flows through each one sequentially.
2. An electric current that flows in only one direction.
4. A simplified drawing that uses symbols to represent the components and connections in an electrical circuit.
7. A circuit in which there are multiple paths for current to flow.
11. The unit of electric current; one ampere equals one coulomb of charge passing a point per second.
12. The amount of electric potential energy per unit charge at a point in a field; measured in volts.
14. The force between two charged objects, described by Coulomb’s law.
16. A material that allows electric current to flow easily through it.
19. The relationship stating that current equals voltage divided by resistance (I = V/R).