Electricity Crossword

2. a device used to reverse the direction of flow of an electric current.
4. either of two regions in a magnet where the magnetic induction is concentrated.
7. an electromotive force or potential difference expressed in volts.
9. a continuous electric current that flows in one direction only, without substantial variation in magnitude.
10. circuit in which there are two or more paths for current flow.
11. An electric current that reverses direction in a circuit at regular intervals.
12. space around a magnet throughout which magnetic force exists.
14. single resistance that could replace several resistors.

1. ratio of potential difference across device to current through it.
2. a flow of electric charge through a conductor.
3. device to transform energy from one electrical circuit to another by means of mutual inductance between two coils.
4. an atom or a group of atoms within a net material.
5. device that uses an electric current to produce a concentrated magnetic field.
6. circuit in which electrical current flows through each component, one after another.
8. production of electric field or current due to change in magnetic flux.
13. property of space around a charged object that causes forces on other charged objects.