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Can u explain heating effect of electric current for 5 marks question? |
| Answer» When current flows through a conductor, heat energy is generated in the conductor. The heating effect of an electric current depends on three factors:★The resistance, R of the conductor. A higher resistance produces more heat.★The time, t for which current flows. The longer the time the larger the amount of heat produced★The amount of current, I. the higher the current the larger the amount of heat generated.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 called the Joule’s equation of electrical heating. | |