Resistance Apparatus
Resistivity Apparatus
The Resistance Apparatus has a slide-wire probe to easily change the measured length of the wire and utilizes a four wire hook-up to accurately measure the voltage drop. It comes with four different brass wire diameters and four other wire materials.
Resistance Apparatus
Resistance Apparatus
Resistance Apparatus
For this experiment, the 850 Universal Interface produces a 10 sec voltage ramp to apply a varying current through a brass wire. A graph of Voltage Drop vs. Current is created, and the slope of this line is the resistance of that length of wire.
Resistance Apparatus
Graph shows voltage drop across various lengths for three different material wires. The slope of the line (along with wire diameter and current) is used to calculate the resistivity of the material.
U.S. Educator Price
$229

Students can calculate the resistance of the wire and the resistivity of the material.

What's Included
  • 2x 30 cm long wires: Copper (1.0 mm diameter)
  • 2x 30 cm long wires: Aluminum (1.0 mm diameter)
  • 2x 30 cm long wires: Stainless Steel (1.0 mm diameter)
  • 2x 30 cm long wires: Nichrome (1.0 mm diameter)
  • 2x 30 cm long wires: Brass (0.5 mm, 0.8 mm, 1.0 mm, 1.3 mm diameter)
What to Consider

See the Buying Guide for this item's required, recommended, and additional accessories.