# physics

An electric iron has a resistance of ohms. How much heat energy is produced in 10 minutes if the current passing through the device is 10 amps?

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1. Delivered energy = I^2*R*t

t is the time in seconds (600 in this case). The computed product will be in Joules.

You did not provide the resistance R, but you will need to know it.

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posted by drwls

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