Joule's law

Joule's law states that the heat produced in a conductor (like a wire) is directly proportional to the square of the electric current flowing through it and the resistance of the conductor, multiplied by the time the current flows. In simple terms, the more current you push through a resistor, the more heat it generates, and this heat increases faster as the current gets bigger. This relationship helps explain things like electric heating devices and why wires can get hot if too much current passes through them.