Question

state joules law of heating explain the working of electric filament bulb​

Answer 1

Answer:

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. b)The resistance of the filament used in the bulb. A 2.5 kW immersion heater is used to heat water.