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Energy and Power - General Questions
Energy and Power - True or False

  1. The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

    2. A.
    2 W
    B.
    1 W
    C.
    5 W
    D.
    0.5 W

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  2. How much continuous current can be drawn from a 60 Ah battery for 14 h?

    3. A.
    42.8 A
    B.
    428 A
    C.
    4.28 A
    D.
    4.2 A

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  3. A 75 load uses 2 W of power. The output voltage of the power supply is approximately

    4. A.
    120 V
    B.
    1.2 V
    C.
    12 V
    D.
    6 V

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  4. When the current through a 12 k resistor is 8 mA, the power is

    5. A.
    7.68 mW
    B.
    768 mW
    C.
    7.68 W
    D.
    76.8 W

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  5. A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is

    6. A.
    132 mW
    B.
    13.2 mW
    C.
    22.6 mW
    D.
    226 mW

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