1.

Indetify the relation Bulb :lighting effect. electric iron? one word question​

Answer»

Physics > Electricity > Heating EFFECTS of Electric Current and Its ApplicationsElectricityHeating Effects of Electric Current and Its ApplicationsBefore we go to school or to attend any function, we ensure that our clothes are crisp and not crimped. And for this, we use an iron to straighten out those clothes. Why do we only use an iron? What’s the mechanism behind the working of an iron? And why is an iron always hot? WELL, this iron is the most basic example of heating effects of electric current in our everyday life. There are many such other devices that WORK on the heating effects of electric current. Let us study them below. What are the heating effects of the electric current?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.Browse more Topics under ElectricityElectric Current and Circuit DiagramsElectric Potential and Potential DifferenceOhm’s Law and ResistanceJoule’s law states the amount of heat production in a conductor is :Directly PROPORTIONAL to the square of electric current flowing through it.Is directly proportional to the resistance of the conductor.Directly proportional to the time for which electric current flows through the conductor.



Discussion

No Comment Found

Related InterviewSolutions