Resistance Substitution Box Biology_Health & Genetics this Hall's car supports dynamics

this Hall's car supports dynamics work on inclined planes with weights and pulleys

supplied dry so the user adds acid and charges it before running heavy-current electrolysis loads

Student kit for constructing a working DC motor from component parts

2A rheostat with oxidized constantan winding on a 300x44mm vitreous-enameled tube

25-inch aluminum tuning fork features a round stem that grips firmly without damping the vibration

Resistance Substitution Box Biology_Health & Genetics this Hall's car supports dynamicsTwelve position substitution box rotating through 100 ohms to 470k ohms at 1W and plus or minus 1%, dropping a known resistance into a circuit without rewiring during Ohm's law work.