Question

explain joules law and it's application​

Answer 1

Answer:

Joule's laws are two: first about heat produced by an electric current, and second about how the energy of a gas relates to pressure, volume and temperature. Joule's first law shows the relation between heat generated by an electric current flowing through a conductor.

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Answer 2

Answer:

either of two statements in physics:

(1) the rate at which heat is produced by a steady current in any part of an electric circuit is jointly proportional to the resistance and the square of the current

(2) the internal energy of an ideal gas depends only upon its temperature irrespective of volume and pressure —

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Application

Electric arc and electric welding also work on the principle of heating effect of current. In some cases such as transformers and dynamos, Joule heating effect is undesirable. These devices are designed in such a way as to reduce the loss of energy due to heating.

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