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Voltage,Current and Resistance - General Questions
Voltage,Current and Resistance - True or False

  1. Materials with lots of free electrons are called

    2. A.
    conductors
    B.
    insulators
    C.
    semiconductors
    D.
    filters

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  2. The unit of electrical charge is the

    3. A.
    coulomb
    B.
    joule
    C.
    volt
    D.
    watt

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  3. Current flows in a circuit when

    4. A.
    a switch is opened
    B.
    a switch is closed
    C.
    the switch is either open or closed
    D.
    there is no voltage

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  4. The minimum resistance value for a blue, gray, red, silver resistor is

    5. A.
    612
    B.
    6,120
    C.
    6,800
    D.
    6,460

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  5. The maximum resistance value for a brown, red, yellow, gold resistor is

    6. A.
    126,000
    B.
    126,600
    C.
    114,000
    D.
    132,000

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  6. Which of the following is not a type of energy source?

    7. A.
    generator
    B.
    rheostat
    C.
    solar cell
    D.
    battery

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  7. When placed close together, two positively charged materials will

    8. A.
    attract
    B.
    become neutral
    C.
    become negative
    D.
    repel

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  8. The conductance of an 8 ohm resistance is

    9. A.
    12.5 mS
    B.
    8 mS
    C.
    12 S
    D.
    125 mS

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  9. Electrons in the outer orbit are called

    10. A.
    nuclei
    B.
    valences
    C.
    waves
    D.
    shells

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  10. A thermistor is a type of

    11. A.
    switch
    B.
    resistor
    C.
    battery
    D.
    power supply

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