Electricity

3. The electrical resistance between two points of a conductor.
5. A flow of electric charge.
6. A material whose internal electric charges do not flow freely.
9. An electric current which periodically reverses direction.
11. An electric current flowing in one direction only.
14. A power source.
15. An electrical component that can "make" or "break" an electrical circuit.

1. Components of an electrical circuit or electronic circuit can be connected in many different ways.
2. An electrical machine that converts electrical energy into mechanical energy.
4. A substance in which electrical charge carriers.
7. circuit A closed circuit in which the current follows one path.
8. A representation of the elements of a system using abstract, graphic symbols rather than realistic pictures.
10. A stable subatomic particle with a charge of negative electricity.
12. An electrical quantity that measures how the device or material reduces the electric current flow through it.
13. The reference point in an electrical circuit from which voltages are measured.