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16 October, 13:23

How many joules of electrical energy is transferred per second by 6V 0.5 A lamp?

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  1. 16 October, 13:52
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    When you ask for "joules per second", you're asking for "watts".

    The rate of energy "transfer" is 'power'. In this case, the light bulb

    transfers energy out of the electrical circuit and into the space

    around it, in the form of light and heat radiation.

    Electrical power = (voltage) x (current) =

    (6 volts) x (0.5 ampere) =

    3 watts = 3 joules per second.
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