Across
- 2. the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
- 4. the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.
- 8. a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.
- 10. circuit in which the current divides into two or more paths before recombining to complete the circuit.
- 11. Accumulation or flow of charges
- 12. electric current is proportional to voltage and inversely proportional to resistance.
- 18. an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
- 20. A measure of the opposition to the flow of electric current through an object.
- 21. the rate of flow of electric charge past a point or region.
- 22. an electromotive force or potential difference expressed in volts.
- 23. a path in which electrons from a voltage or current source flow.
- 24. Magnetic field around a planet or astronomical object.
- 26. the region around a magnet in which the magnetic force acts.
- 27. An equipment in which chemical energy is converted to electrical energy
- 29. the force exerted by a magnet on other magnet or magnetic substances.
- 30. A device that converts electrical energy to mechanical energy.
- 31. an object or type of material that allows the flow of charge in one or more directions; all metals and graphite.
- 32. an automatic device for stopping the flow of current in an electric circuit as a safety measure
- 33. A substance that is attracted to magnet. (Iron, cobalt, nickle)
Down
- 1. A magnet that holds its magnetic field.
- 3. a circuit in which resistors are arranged in a chain, so the current has only one path to take.
- 5. force exerted between any two charged objects.
- 6. accumulation of electric charge on the surface of a substance, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.
- 7. a device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it.
- 9. Material through which the charge flows without resistance.
- 13. A device that converts mechanical energy to electrical energy.
- 14. region at each end of a magnet where the external magnetic field is strongest.
- 15. (DC) an electric current flowing in one direction only; usually produced by a battery.
- 16. region within a magnetic material in which the magnetization is in a uniform direction.
- 17. the difference of electrical potential between two points.
- 19. electric force per unit charge; represented by lines going away from a positive charge and going toward a negative charge.
- 25. an object or type of material that does not allow the flow of charge through it.
- 28. the rate at which electrical energy is consumed in an electrical circuit.