Question

an electric bulb is marked at 40 w and 120 volt it means that one second is converted into

Answer 1

An electric bulb is marked at 40W and 120volt it means that, if we connect the electric bulb in 220V potential difference, it consumes 40Joule of energy per second.

So, your answer should be , an electric bulb is marked at 40w and 120volt it means that one second bulb converted or consumed 40 Joule of energy into heat.

[note :     As you know , unit of potential difference or voltage is volt. And unit of power is watt. Power is the rate of change of energy. E.g., power = energy/time. That’s why, 40W means, 40Joule per second]

Answer 2

Answer:

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Explanation:

An electric bulb is marked at 40W and 120volt it means that, if we connect the electric bulb in 220V potential difference, it consumes 40Joule of energy per second. So, your answer should be , an electric bulb is marked at 40w and 120volt it means that one second bulb converted or consumed 40 Joule of energy into heat.

This may helpful to you.

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