US$ 22.00
and lead threading onto string or rod for mass-dependent pendulum period comparisons
Single-decade resistance box covering 1 ohm to 10 ohms in 1-ohm steps
5-inch height including hook for spring-scale suspension
Fine 40-60 mesh iron filings in a 100-gram sprinkle bottle
3" Closed Ring with Boss Head Clamp, 5" Long Subcategory_Electromagnetism and lead threading onto stringThree inch cast iron inner ring sits on a 5 16 inch stem paired with an open boss head, gripping rods from 5 16 to 5 8 inch for flask and funnel support on retort stands.