Portable space heaters are small, electric resistance heating units. Regardless of the shape, size or type of electric heating element found in an electric space heater, virtually all power drawn is converted into heat. The cost of operating an electric heater depends on how much heat the unit is delivering.ortable space heaters are small, electric resistance heating units. Regardless of the shape, size or type of electric heating element found in an electric space heater, virtually all power drawn is converted into heat. The cost of operating an electric heater depends on how much heat the unit is delivering.
Flexible electronics, also known as flex circuits, is a technology for assembling electronic circuits by mounting electronic devices on flexible plastic substrates, such as polyimide, PEEK or transparent conductive polyester film.
1. A closed path through which an electric current flows or may flow. â¦ Circuits in which a power source is connected to two or more components (such as light bulbs), one after the other, are called series circuits.If the circuit is broken, none of the components receives a current. Circuits in which a power source is connected to two or more components (such as light bulbs), one after the other, are called series circuits. If the circuit is broken, none of the components receives a current.