Across
- 1. a device that converts high voltage from high power lines to 230 volts from home and farm insulations.
- 5. Electrical wiring, switches and outlets that extend out from service entrance panel.
- 7. any tendency of material to prevent electrical flow.
- 10. An electrical circuit in which there is at least one place where current cannot flow.
- 14. small wires placed with others to form bundles to improve flexibility and conductivity.
- 15. A special metal element in a vacuum that produces light when electricity flows through it.
- 17. opposite ends of a magnet.
- 18. Device that produces alternating electrical current but usually equipped with diodes to change current to direct current.
- 19. A device that produces direct current.
- 22. A force that attracts or repels iron or steel.
- 25. The body's reaction to an electrical current.
- 27. the unit of measure for voltage.
- 29. making an electrical connection between a piece of equipment and the Earth.
- 32. DC current flowing in the opposite direction from straight polarity to reverse the direction of the current.
- 33. End of a magnet opposite the south pole.
- 35. a high-speed rotary engine driven by water, steam, or any other gases.
- 38. loss of voltage as electricity travels through a wire.
- 39. conductor with white insulation that carry current from an appliance back to the source
- 42. An assembly of electrical wires, connectors, and fasteners used to transmit electricity from a transformer to a service entrance panel.
- 44. the use of one watt of electricity for one hour.
- 45. material that provides great resistance to the flow of electricity.
- 47. magnetic force around an electrical wire or iron core.
- 49. the relationship between electric current(I), Electromotive force(E), and resistance (R), E=IR
- 50. The action of two magnets that pull together when opposite poles are placed near each other.
- 52. the unit of measure for wattage
- 53. Flexible metal sheath with individual wires inside
- 54. Plug or cartidge containing strip of metal that melts when more than a specified amount of current passes through it.
Down
- 2. A condition that occurs when electricity flows back to its source too rapidly and blows fuses, burs wires and drains batteries.
- 3. Metal tube with individual insulated wires inside.
- 4. The rotating part of a motor, also the iron core portion of magnet.
- 6. An electrical source and wires connected to a light, heater, and motor.
- 8. a piece of iron or steel that holds its magnetism
- 9. Light tube that glows as a result of electricity flowing through gases.
- 11. Any material that will permit electrons to move through it.
- 12. a round cylindrical piece of metal.
- 13. Area around an iron core or electric wire influenced by the presence of magnetism.
- 16. A switch that trips and breaks the circuit when more than a specified amount of current passes through it.
- 20. Lines of magnetic force that occurs in the patterns between poles of magnet.
- 21. Thousandth of an ampere.
- 22. A device that measures electricity, gas, or liquid that passes through a system.
- 23. A form of energy that can produce light, heat, magnetic force and chemical changes.
- 24. conductors with black, red, or blue insulation that carry current to an appliance.
- 26. The us of 1000 watts for 1 hour.
- 28. Metal drawn out into the form of a thin flexible thread or rod.
- 30. Ground circuit interrupter.
- 31. Cable composed of copper or aluminum wires covered with paper, rubber, or vinyl for insulation and protection.
- 34. one thousand.
- 36. drive or force.
- 37. The part of a motor that changes the flow of current at appropriate times.
- 40. A waterproof conduit connection where an electrical entrance cable is connected to a building.
- 41. end of magnet opposite the North pole.
- 43. Electrical metallic tubing.
- 46. electronic measuring instrument that combines several measurement functions in one unit.
- 48. a measure of the resistance of a material to the flow of electrical current.
- 51. The unit of measure of amperage.