Electricity & Magnetism

2. A representation of the electric potential energy per unit charge.
6. Field The invisible region of force surrounding a magnet.
7. An electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction.
11. Any material capable of attracting iron and producing a magnetic field outside itself.
14. The difficulty of the flow of charge through an electric circuit.
16. The flow of electric charge in a circuit.
17. Electricity A familiar electric phenomenon in which charged particles are transferred from one body to another.
18. A negatively charged subatomic particle that together with protons and neutrons form an atom.
19. Unit of measurement for voltage.
21. Induction A current produced because of voltage production (electromotive force) due to a changing magnetic field.
23. Opposite poles of a magnet will _______.

1. The north and south ends of a magnet.
3. A metal core made into a magnet by a current flowing through wire coiled around it.
4. Something that can be used to complete or break a circuit connection.
5. A type of electromagnet formed by a helical coil of wire whose length is substantially greater than its diameter.
8. A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
9. Field A region around a charged particle or object within which a force would be exerted on other charged particles or objects.
10. Materials that permit electric charges to flow freely from particle to particle.
12. An electric machine that transforms a mechanical form of energy into electrical energy.
13. An instrument for measuring a small electrical current or a function of the current by deflection of a moving coil.
15. Motor An electrical machine that converts electrical energy into mechanical energy.
18. Force The repulsive or attractive interaction between any two charged bodies.
20. Force A force produced when magnetic poles interact.
22. Like poles of a magnet will _______.
24. The closed path through which the electrical charge can flow.