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.
A parallel circuit. A parallel circuit is a circuit in which there are at least two independent paths in the circuit back to the source. In a parallel circuit, the current will flow through the closed paths and not through the open paths.In a parallel circuit the electricity has several paths that it can travel.1  In a series circuit all components are connected end-to-end, forming a single path for electrons to flow. 2  In a parallel circuit all components are connected across each other, forming exactly two sets of electrically common points.n a parallel circuit the electricity has several paths that it can travel. 1  In a series circuit all components are connected end-to-end, forming a single path for electrons to flow. 2  In a parallel circuit all components are connected across each other, forming exactly two sets of electrically common points.