Physics, asked by Anonymous, 2 months ago

a) Write a mathematical expression for Joule's law of heating. Name on this principle. a device which work
(b) An electric iron of resistance 20 ohm takes a current of 5 A. Calculate the heat produced
(c) The current through the above resistor is made three times its initial value. in 30 seconds. Calculate the change in heat produced.

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Answered by Anonymous

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Ur answer is in the attachment..

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