Joule heating

Joule heating is the conversion of electrical energy into thermal energy as current flows through electrical resistance. Its rate is given by the product of current squared and resistance.

Joule's first law: The relation stating that heat produced by an electric current is proportional to resistance, current squared, and time. It gives the quantitative law behind heat generated by a current over time.
Electric heater: A device that converts electrical energy into heat, commonly using a resistive element. It uses Joule heating as its intended means of producing warmth.
Ohm's law: The relation connecting voltage, current, and resistance in an electrical conductor under specified conditions. It lets voltage-based and current-based expressions for resistive power be related.
Peltier effect: Heating or cooling at a junction when electric current passes between two different conductors or semiconductors. Unlike ordinary resistive heating, it can move heat between a junction's sides and reverse with current.
Electrical resistance: The opposition a material or component presents to electric current. Resistance determines how much electrical power becomes heat at a given current.
Incandescent light bulb: A lamp that produces light by heating a filament until it glows. Its filament becomes hot through resistance, with light emerging alongside heat.
Voltage: The electric potential difference between two points, representing energy transferred per unit charge. A potential difference supplies energy that resistance can dissipate as heat.
Seebeck effect: The production of an electric voltage from a temperature difference across joined materials. It converts a thermal gradient into electrical potential rather than dissipating current as heat.
Electric current: The rate at which electric charge passes through a point in a circuit. Current is the moving charge whose energy transfer produces resistive heating.
Electric stove: A cooking appliance that heats cookware using electrically powered heating elements. Its element transfers Joule-generated heat to cookware and food.

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