Joule heating

Uncommon card · No. 177998

Joule heating (also known as resistive heating, resistance heating, or Ohmic heating) is the process by which the passage of an electric current through a conductor produces heat. Joule's first law (also just Joule's law), also known in countries of the former USSR as the Joule–Lenz law, states that the power of heating generated by an electrical conductor equals the product of its resistance and the square of the current. Joule heating affects the whole electric conductor, unlike the Peltier effect which transfers heat from one electrical junction to another. Joule-heating or resistive-heating is used in many devices and industrial processes. The part that converts electricity into heat is called a heating element. Practical applications of joule heating include, but are not limited to: Buildings are often heated with electric heaters where grid power is available. Electric stoves and ovens use Joule heating to cook food. Soldering irons generate heat to melt conductive solder and make...

Read on Wikipedia · Image Geek3, CC BY-SA 3.0