Test your basic knowledge |

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






2. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.






3. The condition where the free electrons are caused to move in the same direction along or through a conductor.






4. Total and complete opposition to the flow of electrons






5. A cell which is composed of certain materials which are used up during the process of delivering electric current.






6. 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.






7. The liquid solution (sometime a paste) in which the electrodes are placed.






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






9. Term applied to the loss of voltage in forcing current through any portion of a circuit. Different factors will cause a drop; material - size - (cross - sectional area) length - temperature.






10. One millionth of a volt.






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






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






13. A unit of power.






14. Lines representing the direction of the magnetic force in a magnetic field.






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






16. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature






17. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...






18. One millionth of an ohm.






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






20. The process of producing an electromotive force in a conductor as a result of the cutting of magnetic lines of force by a conductor.






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






22. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.






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






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






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






26. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.






27. A device used to change the voltage of an alternating current circuit.






28. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.






29. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours






30. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.






31. Opposition to current flow






32. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.






33. Single POSITIVE electrical charge - located in the middle of an atom.






34. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.






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






36. The time rate at which work is done or energy is transferred. When a pressure of 1 volt sends a current of 1 ampere through a resistance of 1 ohm - the power in the circuit is said to be 1 watt.






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






38. 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.






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






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






41. A material that has many free electrons thus allowing electric current to flow through it easily.






42. A measuring device.






43. A circuit with only one path for current to flow. There are no branches.






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






45. Several secondary cells connected together for either a greater voltage or current output.






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






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






48. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.






49. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.






50. An instrument for measuring electric current