Question

Explain Joule’s law of heating ,also write it’s  2 practical applications.​

Answer 1

Answer:

Electric iron, electric heater, electric toaster are some of the appliances that work on the principle of heating effect of current. In these appliances, Nichrome which is an alloy of nickel and chromium is used as the heating element for the following reasons. 1. It has high specific resistance. 2.

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Answer 2

Answer:

There are many practical uses of Joule heating: An incandescent light bulb glows when the filament is heated by Joule heating, due to thermal radiation (also called blackbody radiation). Electric fuses are used as a safety, breaking the circuit by melting if enough current flows to melt them.

Explanation:

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