Cos: Electricity

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Author:
Anonymous
ID:
127291
Filename:
Cos: Electricity
Updated:
2012-01-11 20:51:22
Tags:
Cosmetology Electricity
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Description:
Cosmetology: Electricity
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  1. Measure of electric strength.
    Amp.
  2. Measure of electric pressure.
    Volt.
  3. A unit of electric resistance is called
    Ohm.
  4. A measure of electric use is.
    Watt.
  5. What is a load?
    Any electrically powered appliance.
  6. What is the purpose of a conductor?
    To transport current in a circuit to a load.
  7. What does an insulator do?
    Allows for safe handling of electricity.
  8. Something with positive polarity will ______ electrons.
    Attract.
  9. Something with negative polarity will _____ electrons.
    Repel.
  10. _____ current is when electrons flow in only one direction.
    Direct.
  11. ______ current is when electrons flow in one direction first, and then flow in the other direction.
    Alternating.
  12. A battery uses ____ current only.
    Direct.
  13. When a load is being powered, the circuit is _____.
    Closed.
  14. In ____ wiring, multiple loads can be run at once or at different times.
    Parallel.
  15. A ______ is when more current flows on a line than it is designed to carry.
    Overload.
  16. A _______ occurs when a foreign conductor comes in contact with a wire carrying a current.
    Short Circuit.
  17. A _____ contains a fine metal wire that will heat up and melt, breaking the flow of electricity, when there is an over load. This is not reusable.
    Fuse.
  18. A ______ is a reusable device with two connecting pieces of metal, that separate when two much heat is sensed and breaks the flow of electricity.
    Circuit Breaker
  19. A ______ conducts high and sudden flows of electric current out of an appliance into the ground.
    Grounding Wire
  20. A ______ shock passes through the nervous system and causes the heart to stop beating, breathing to cease and muscles to convulse. CPR is the only procedure that can save the victim's life.
    General Shock.
  21. A ______ shock passes through a small portion of the body which causes burns and muscle contractions. Usually submerging the burn in cold water is sufficient.
    Local.

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