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Basic Electricity Vocab

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature






2. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.






3. A single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of an atom.






4. A material with few free electrons. A structure or material used to prevent the passage of current.






5. In an electrical circuit - or part of an electric circuit - the intensity of the current is equal to the electromotive force that drives it divided by the resistance of the circuit.

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6. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.






7. Iron and certain alloys of iron which are magnetized by artificial means.






8. A circuit with two or more paths for the current to take.






9. The electrodes of a cell shaped as plates to expose a surface as possible to the electrolyte.






10. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).






11. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.






12. An instrument for measuring electric current






13. Shows relationship between Current - Voltage - Wattage and Resistance.

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14. The property of a material that opposes the flow of current.






15. Negative charge of electricity






16. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.






17. The space around a magnet in which the magnetic force is felt.






18. A resistor designed so that its resistance is readily adjusted.






19. The magnetism which a material retains after the magnetic force which magnetized it has been removed.






20. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.






21. The difference between the electrical condition of one point in an electric circuit and that of another point which tends to cause current to flow between two points. Measured in volts.






22. An alternating current which current cycle begins later that its voltage cycle.






23. One- thousandth of a ampere






24. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.






25. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.






26. One- thousandth of volt.






27. A rate of movement of electrons through a conductor.






28. The number of cycles per second. Example: 60 cycles per second alternating current.






29. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.






30. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.






31. The area surrounding a magnet in which magnetic properties are exhibited






32. One millionth of an ohm.






33. An alternating current which current cycle begins earlier than its voltage cycle.






34. Meter used to measure resistance in an electrical circuit.






35. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field






36. The unit of Electro- Motive Force






37. The dissimilar metals which are placed in an electrolyte to form a cell.






38. A unit of power.






39. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.






40. A cell which is rechargeable. Uses materials which change in compostition during delivery of current - but may be restored to original condition upon recharge.






41. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.






42. Hardened steel which has been magnetized artificially and which retains its magnetic properties






43. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.






44. The rotating member of an electrical machine.






45. The center portion of an atom which has a positive electrical charge.






46. A material which can be magnetized - principally iron.






47. The path of an electric current. To permit a steady flow of current - the path must be complete. Commonly - a complete circuit includes a device for the production of an electromotive force - connecting wires - and a device supplied with electricity.






48. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).






49. A circuit in which there is resistance (load) connected both in series and parallel.






50. Smallest part a substance can physically divided into composed of 2 or more atoms.