Electricity and Magnetism

3. type of electric circuit where there is only one current path and all current travels through each device
5. converts mechanical energy into electrical energy
8. exists in space where magnets would experience a force
9. used to lower voltage to a manageable level
11. current in which there are several paths
14. the study of electricity
18. converts electrical energy into mechanical energy
19. allows charges to pass through easily
20. a wire connected to a circuit and coiled into many spiral loops

1. current reverses direction multiple times per second
2. difference in voltage between two points
4. property of a space around a charged object that exerts forces on other charged objects
6. the attractive or repulsive force between charged particles and magnets
7. does not allow charges to pass through easily
10. a group of neighboring atoms whose poles are aligned
12. the number of magnetic field lines passing through a surface perpendicular to the lines
13. magnet whose magnetic field is produced by electric current
15. occurs when a neutrally charged object gains a charge by touching a charged object
16. having two opposite ends, called poles
17. occurs when a neutrally charged object gains a charge by being near a charged object