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30 September, 06:36

An electric iron operating at 120 volts draws 10. amperes of current. how much heat energy

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  1. 30 September, 08:19
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    The complete question is how much heat energy is delivered by the iron in 30 seconds.

    Heat is given by IVt, Where I is the current in Amperes, V is the voltage, and t is the time in seconds,

    Therefore;

    Heat energy = 120 * 10 * 30

    = 36000 joules or 36 kJ

    Heat energy is measured in joules.
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