Electric Motor Open Model 8 pairs die-cast steel lugs

8 pairs die-cast steel lugs

Head - 1 Part

and density determination

such as mercury or water

economical digital thermometer features a large

Electric Motor Open Model 8 pairs die-cast steel lugsElectric Motor Open Model It can demonstrate the structure and principle of DC generator and AC generator. Th specific principle is the closed principal iron ring. The inner side is equipped with a pair of electromagnets. The coils of the two electromagnets are connected in series, and the binding posts are mounted on iron ring. Via operation, you kids know how motor works, cultivate children's curiosity about science, and regard science as a child's