Joule’s law of heating states that the heat produced in a resistor is directly proportional to three factors: (i) the square of the current for a given resistance, (ii) the resistance for a given current, and (iii) the time for ...

The heating effect of electric current is utilized in devices such as electric heaters and electric irons. In these devices, the electric current passing through resistive elements generates heat, which serves the intended purpose, such as heating a room or ...

In a purely resistive electric circuit, where resistors are connected to a battery, the source energy is entirely dissipated in the form of heat. This is known as the heating effect of electric current.

Continuous use of an electric fan can result in the gadget becoming warm, showcasing the conversion of a portion of the electrical energy into heat. This phenomenon is commonly observed in everyday life.

A portion of the energy generated by the cell is used for performing useful work, such as rotating the blades of an electric fan. Another portion of the energy is dissipated as heat, leading to an increase in temperature of ...