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11 August, 15:54

A camcorder has a power rating of 16 watts. If the output voltage from its battery is 9 volts, what current does it use?

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  1. 11 August, 16:15
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    Because of the parameters that we are given in the question, the right current formula that should be used for this physics problem is:

    I = P/V

    Where:

    I = Current

    P = Power and

    V = Voltage

    From the question, we are told that:

    P = 16 W

    V = 9 V

    Thus, current = P/V = 16/9 = 1.78

    Therefore, The current used by the camcorder is 1.8 Amphere.
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