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






2. Any device which may be placed in the circuit and which offers opposition to the flow of electrons around the circuit.






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






4. A complete sequence of events - as an alternating- current cycle.






5. A connection of circuit of low resistance. Current through each of the end- to- end devices is exactly the same. Only one path for the current.






6. Positive charge of electricity. Located in the nucleus of the atom.






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






8. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.






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






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






11. Total and complete opposition to the flow of electrons






12. 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.






13. One- thousandth of a ampere






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






16. A coil of wire designed to act as a magnet as a result of carrying an electrical current. It is usually wound on a soft iron core.






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






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






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






20. The part of the magnet where the magnetic force is most concentrated. Commonly referred to as the North or South pole or the positive or negative poles)






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






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






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






24. The moving part of a dynamo or motor consisting of coils of wire around an iron core.






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






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






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






28. The unit of Electro- Motive Force






29. Coil connected to the source of power on a transformer.






30. The unit of electromotive force - potential - pressure - or voltage which produces a current of one ampere in a circuit having a resistance of 1 ohm. This is the force created to move electrons through a circuit.






31. 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.






32. A complete path provided for the flow of electrons. Consists of a source - with a closed conducting path leading from the source and back to the source






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






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






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






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






37. 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.






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






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






40. An instrument for measuring electric current






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






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






43. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






46. A circuit with more than one path. Current branches to flow in every available path.






47. Opposition to current flow






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






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






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