Electrical Fundamentals

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Author:
Ordonez
ID:
298645
Filename:
Electrical Fundamentals
Updated:
2015-03-21 02:25:10
Tags:
Electircal Fundamentals Automotive
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Description:
Electrical Fundamentals Automotive
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  1. What is an open circuit ?
    is any circuit that is no complete or lacks continuity.
  2. A "short" in a circuit occurs ?
    when current takes a different path than was originally intended 

    current flow increases
  3. Short to ground occurs ?
    when the isolation fails and the conductor comes in contact w/ a ground circuit, which is usually the frame or body of the vehicle.
  4. Common causes of an open circuit ?
    • - corroded wires 
    • - loose connections 
    • - broken wire
    • - extremely high resistance will appear as an open circuit.
  5. An Ammeter is NOT used for diagnosing ______ ?
    Ground Shorts
  6. An Ammeter that connects into a circuit is ALWAYS connected ________ ?
    IN SERIES 
  7. If Voltage remains constant - what happens with Resistance & Current ?

    (Current is INVERSELY proportional to Resistance)
    Resistance is increased, current will decrease proportionally
  8. If Voltage remains constant - what happens w/ Resistance & Current 

    (Current is INVERSELY proportional to Resistance)
    Resistance is decreased, current will increase proportionally
  9. if Resistance remains a constant 

    (When Current is DIRECTLY proportional to Voltage)
    Voltage is increased, current will increase proportionally
  10. if Resistance remains a constant 

    (When Current is DIRECTLY proportional to Voltage)
    Voltage is decreased, Current will decrease proportionally

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