Physics, asked by Anonymous, 22 days 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 Q 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.

Answers

Answered by shabanamdevi80

Answer:

The heat that is generated because of the current flow in an electric wire is described in Joules. Q = I2 R t. ... R is the amount of electric resistance in the conductor. t denotes time.

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