US$ 19.99
Diffraction grating mounted on a 90 x 40mm card slide
the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles
this demonstration electroscope detects and visually quantifies the magnitude of static charges
and workshop tasks
Closing to 3m and extending to 9m
50Ω Resistance Unit, Max 7.0V Subject_Anatomy Diffraction grating mounted on aLabeled terminal 50 ohm resistance unit at 7. 0V max in a plastic enclosure, providing the standard mid range value for current limiting LEDs and dropping resistors in student circuits.