Conventional electric ranges, cooktops and ovens use heating elements to convert electrical energy into heat energy. This heat energy, in conventional ovens, then transfers to the pans containing the food by radiation and convection where it then transfers by conduction to the food to be cooled.
This is designed to transfer electrical energy into sound energy. As the electricity passes through the wires, circuit boards and other components, some of the original electrical energy is transferred into heat energy.
In the light bulb, the flow of charge through the filament heats it up and causes it to glow. In this way, the light bulb converts electrical energy to heat energy and light energy.
The energy starts as chemical energy in the batteries. Inside the batteries the chemicals react together to produce electricity. This electrical energy is then changed to moving (kinetic) energy by passing it through something called an electromagnet, which makes the bell clapper move.
A television set is another device that operates by the transformation of energy. An electrical beam from the back of the television tube strikes a thin layer of chemicals on the television screen, causing them to glow. In this case, electrical energy is converted into light.
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