Extended-Range Rheostat, 200 x 44mm, Model B Biology_Health & Genetics Plastic interchangeable dial with sealed

Plastic interchangeable dial with sealed shunt or multiplier housing

lets students compare how line density per unit length controls the spacing of the resulting interference pattern

9-inch sizes for varied pour-transfer operations in chemistry and biology labs

telophase — progress across this plant mitosis model for cell division teaching in biology courses

and reproductive glands across a unified anatomical display

Extended-Range Rheostat, 200 x 44mm, Model B Biology_Health & Genetics Plastic interchangeable dial with sealedCompact 200x44mm extended range rheostat at 50 ohms and 2A, the smaller tube counterpart to the 300x44mm standard rheostats with the same constantan winding construction.