State heating effect of current? Explain Vividly?
Answers
Answer:
(a) Heating effect of electric current : When an electric current is passed through a high resistance wire like nichrome, the resistance wire becomes very hot and produces heat. This is called heating effect of electric current.
Answer:
When a current flows through a conductor, heat energy generates in the conductor. The heating effects of electric current depend on three factors:
The resistance of the conductor. A higher resistance produces more heat.
The time for which the current flows. The longer the time the amount of heat production is high.
Higher the current the amount of heat generation is also large.
Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is the Joule’s equation of electrical heating.
Explanation:
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