Magnet and Electricity

4. an instrument which is used to find the direction of a magnetic field
9. a material that does not let an electric current pass through it
10. allows a current of electricity to pass through it
12. one that is attracted to a magnet and can be made into a magnet is called..
13. an instrument used for measuring electrical potential difference between 2 poimts in an electric circuit
15. the regions of greatest magnetic force are near ends of the magnet.These regions are called..
17. the difference in electrical potential(potential difference)between 2 points in circuit and is measured in units called volts,is called..
18. Inside a magnetic material are many tiny regions called...

1. a type of magnet in which the magnetic field is produced by an electric current
2. EM waves with wavelenghts 400-700 nm are seen by the human eye as...
3. a measuring instrument used to measure the current in a circuit
5. negatively charged particles that orbits the nucleus in variously shaped 'shells' or enery levels
6. a magnetic field have 2 poles:...... Pole and south pole
7. charge is stored in devices called...
8. a push or pull that causes a change in motion
11. the region around a magnet where the pull of the magnetic force acts on magnetic materials
14. a piece of magnetic material witg a high magnetic permeability used to cofine and guide magnetic fields in electrical,electromechanical and magnetic devices
16. the basic building blocks of the elements