Physics

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A commercial resistor can safely dissipate power only up to a certain rated value. Beyond this value, the resistor becomes excessively hot and often cracks apart. The resistor used in this experiment was rated by the manufacturer to be a 2 watt resistor. What is the largest voltage that can safely be applied across the resistor? Hint: The power P dissipated by a resistor R is given by P = I2R = V2R = IV where I is the current and V is the voltage.

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    There has to be more information.

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    This is the question that was provided, no more information.

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    Then it cannot be answered.

  • Physics -

    A 120.0 ohm resistor, a 60.0 ohm resistor, and a 40.0ohm resistor are connected in parallel and placed across a 12.0-V battery. What is the current of the entire circuit?

    a.
    0.800 A
    c.
    0.600 A
    b.
    1.26 A
    d.
    0.062 A

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