Description
1100-turn copper coil on a bobbin sized for a double C-core
For measuring the specific gravity of light liquids
letting students read image height and position directly off the projected real image during focal-length investigations
illustrating how differential thermal expansion makes and breaks a low-current circuit
0 bit Resolution 0
Reading Magnifier, 100mm, 20cm Focal Length Material_Ceramic 1100-turn copper coil on aPairs a 100mm aperture with a 20cm focal length for the lowest magnification in the chrome framed reading magnifier line, well suited where breadth of view matters more than zoom.
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