Appliances that are based on the principle that a wire carrying current heats up are typically categorized as "resistive" appliances. These appliances utilize the heating effect of electric current in a resistive element to generate heat. The principle behind this is known as "Joule heating" or "resistive heating," where electrical energy is converted into heat as it passes through a conductor with resistance. Some common examples of appliances based on this principle include:
Electric Heater: Electric heaters use a resistive coil or element that heats up when electricity passes through it. The heat generated is then radiated into the surrounding environment, providing warmth in rooms or specific spaces.
Toaster: Toasters have heating elements that warm up to toast bread slices. The current passes through these elements, producing heat that toasts the bread.
Electric Stove: Electric stoves consist of coiled heating elements or solid burners made of a resistive material like ceramic or metal. When current flows through these elements, they heat up and cook food placed on top of them.
Electric Iron: The heating element in an electric iron heats up when electricity passes through it. The heat produced helps in ironing clothes by removing wrinkles.
Electric Kettle: Electric kettles have a heating element at the base that heats up the water when the kettle is turned on. The hot water is then used for various purposes, like making tea or coffee.
Hair Dryer: Hair dryers utilize a resistive heating element to produce warm air that dries and styles hair.
Space Heater: Similar to electric heaters, space heaters use resistive elements to generate heat and warm up small areas.
These appliances are simple in design and rely on the heating effect of electric current through resistive elements to perform their respective functions. However, it's essential to use them with caution and follow safety guidelines to prevent accidents and ensure efficient operation.