Resistance Substitution Box Biology_Health & Genetics Student kit for constructing a

Student kit for constructing a working DC motor from component parts

Spring-loaded vinyl jaws open to 2

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

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

Spring-loaded 4mm slit on a rod attachment opens and closes smoothly under finger pressure

Resistance Substitution Box Biology_Health & Genetics Student kit for constructing aTwelve 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.