Across
- 3. sources include wind, wave, marine, hydro, biomass and solar.
- 7. is a type of transformer that converts the high voltage (HV) and low current from the primary side of the transformer to the low voltage (LV) and high current value on the secondary side of the transformer.
- 9. start the flow or operation of something by means of a valve, switch, or button.
- 10. a material or object that produces a magnetic field.
- 11. to stop the flow of or shut off.
- 12. a difference in potential that tends to give rise to an electric current.
- 13. a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge.
- 14. are waves that are created as a result of vibrations between an electric field and a magnetic field.
- 15. is an electrical machine that converts electrical energy into mechanical energy.
- 18. used in electrical wiring since the invention of the electromagnet.
- 21. used to bear mechanical loads or electricity and telecommunications signals.
- 22. magnetism is produced by the force of the field radiating from the poles of a magnet.
- 23. operating by or producing electricity.
- 24. law of induction says that when a magnetic field changes.
- 25. having the properties of a magnet. • capable of being magnetized or attracted by a magnet.
- 27. are made up of copper wires, that is coated with insulated plastic and is colour coded for its purpose.
- 28. an electrical conductor such as a wire in the shape of a coil, spiral or helix.
- 29. an energy usually the side with the higher voltage.
- 31. being the same in quantity.
- 32. an energy includes resources that have been converted or stored.
- 34. a physicist who developed a theory that explained the relationship between electricity and magnetism and correctly predicted that visible light is caused by electromagnetic waves.
- 36. a device that converts motive power into electrical power for use in an external circuit.
- 38. defined as the number of magnetic field lines passing through a given closed surface.
- 39. an instrument for detecting and measuring small electric currents.
Down
- 1. the process of using magnetic fields to produce voltage, and in a closed circuit, a current.
- 2. a physical phenomenon produced by the motion of electric charge.
- 4. is a material which electricity, heat or sound can flow through.
- 5. is a flow of electric charge in a circuit.
- 6. a two-terminal device which can maintain a fixed voltage.
- 8. is any closed path going through circuit elements.
- 16. A transformer designed to increase the voltage from primary to secondary.
- 17. a device that transfers electric energy from one alternating-current circuit to one or more other circuits.
- 19. motion of charges in perpendicular electric field.
- 20. a branch of Physics, that deals with the electromagnetic force that occurs between electrically charged particles.
- 22. also called a magnetic core.
- 26. is an unbroken loop of conductive material that allows charge carriers to flow through continuously without beginning or end.
- 30. attraction or repulsion that arises between electrically charged particles because of their motion.
- 33. the pressure from an electrical circuit's power source that pushes charged electrons.
- 35. the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge.
- 37. a fundamental physical constant that is the speed at which electromagnetic radiation propagates in a vacuum and that has a value fixed by international convention of 299,792,458 meters per second.