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Electricity
What does resistance depend on?
Resistance.Apparatus
EM-8812
P .Measure.resistance.and.resistivity
P .Four.wire.diameters,.five.wire.materials
Features
Vary wire length: Slide-wire potentiometer
pick-up makes it easy. Use the built-in scale
to measure the length of the wire.
Vary wire diameter: Four different diameters
of brass wire are included. Investigate the
difference between resistance and resistivity.
Interchange wires quickly and easily.
Vary wire material: Five different material
wires are included. Investigate how
resistivity depends on the wire material.
Storage: Built-in storage tray holds wires.
Built-in.cm.scale
and slide wire probe make
it easy to measure the
voltage drop across various
wire lengths.
Slide.wire.probe
Spring-loaded wire probe
slides easily along the wire,
making contact at a single
point.
Sample.wire
Wires are held securely
and straight by the wire
guides and lugs.
Hand-Crank.Generator
EM-8090
P .Heavy-duty.geared.generator.
outputs.up.to.25.Watts
For the experiment shown, the Xplorer GLX Power Amplifier produces a 10 second voltage ramp to apply a varying current through
a brass wire. The current is measured directly by the Power Amplifier, and the voltage drop over the selected section of wire is
measured by the Galvanometer Sensor. Slide wire potentiometer utilizes four wire hook-up to accurately measure the voltage drop.
Includes
Two each of the following (30 cm long) wires:
Copper (1.0 mm diameter)
Aluminum (1.0 mm diameter)
Stainless Steel (1.0 mm diameter)
Nichrome (1.0 mm diameter)
Brass (0.5 mm, 0.8 mm, 1.0 mm, 1.3 mm diameter)
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.
Order Information:
Resistance Apparatus........EM-8812
Shown in use with:
Galvanometer.Sensor.........PS-2160.
Power.Amplifier......................PS-2006.
Xplorer.GLX................................PS-2002.
p..5.
p..7.
p..4.
www.pasco.com/engineering
This generator produces up to 12 Volts with a sturdy handle,
designed to be cranked by hand. When used to power the
light bulbs on the Series/Parallel Circuit board (sold separately),
students can feel the difference in effort required
for lighting one bulb, two bulbs or no load.
Order Information:
Hand-Crank Generator..................EM-8090
Shown in use with:
Series/Parallel.Circuit.....................EM-8677.
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