Electromagnetism

6. the accumilation of electirc charge on the surface of an object.
8. The repulsive or attractive interaction between any two charged bodies
10. the area around a magnet in which there is magnetic force.
11. an electrical machine that converts electrical energy into mechanical energy.
12. a charge with a magnitude so small that placing it at a point has a negligible effect on the field around the point.
14. a region in which each point has a physical quantity associated with it.

1. the creation of an electro-motive force (EMF) by way of a moving magnetic field around an electric conductor
2. an electric machine that transforms a mechanical form of energy into electrical energy.
3. characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.
4. a magnet made with electricity.
5. an object made from a material that is magnetized and creates its own persistent magnetic field.
7. a field in which the value of the field strength remains the same at all points.
9. the force of attraction or repulsion acting along a straight line between two electric charges is directly proportional to the product of the charges and inversely to the square of the distance between them.
13. a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing stepping up or reducing stepping down the voltage.