Triple-Parallel Metal Pulley Item Type_Weights or lead to compare electrode

or lead to compare electrode potentials and trace the activity series experimentally

Single-decade resistance box covering 0

sized to mount alongside a tone generator for converting electrical signals into audible tones during sound-wave demonstrations

visualizing Pascal's-principle mechanical advantage directly

the standard low-end Ohm's-law value used in current-limiting and voltage-divider work

Triple-Parallel Metal Pulley Item Type_Weights or lead to compare electrodeThree wheel parallel pulley in a metal frame with accurately centered 50mm aluminum wheels, supporting three rope compound arrangements for force distribution experiments.