Description
Resistance Wire Board-This apparatus provides the basis for student investigations into resistance. Four wires, 50cm long mounted on a hardwood and acrylic base and connected to via 4mm sockets. The wires are all Nichrome with diameters of 1.0, 0.8, 0.63 and 0.4mm giving resistances in the range 0.4 to 4 ohms. A graduated mm scale is included allowing resistance vs. length and resistance vs. diameter investigations to be easily covered. Explore resistance against diameter and length