Download 4.1.01-15 Ohm`s Law with FG-Module Electricity

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09.08.2007
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Seite 154
Electricity
Stationary currents
4.1.01-15 Ohm’s Law with FG-Module
What you can learn about …
Ohm’s law
Resistivity
Contact resistance
Conductivity
Power and Work
Principle:
The electrical resistance of pure metals increases with increasing temperature. The correlation between
voltage and current is to be measured using temperature-in- and dependent resistors. Determine the
work and power of an incandescent
bulb.
What you need:
Cobra3 BASIC-UNIT, USB
12150.50
1
Power supply 12V/2A
12151.99
2
Measuring module Function Generator
12111.00
1
Connection box
06030.23
1
Carbon resistor 100 Ω, 1W, G1
39104.63
1
Carbon resistor 220 Ω, 1W, G1
39104.64
1
Carbon resistor 330 Ω, 1W, G1
39104.13
1
Lamp socket E 10, G1
17049.00
1
Filament lamps, 12 V/0.1 A
07505.03
1
Connecting cable, 4 mm plug, 32 A, red, l = 50 cm
07361.01
2
Connecting cable, 4 mm plug, 32 A, blue, l = 50 cm
07361.04
2
Software Cobra3 PowerGraph
14525.61
1
PC, Windows® 95 or higher
Current, Power and Work of an incandescent bulb.
Complete Equipment Set, Manual on CD-ROM included
Ohm‘s Law with FG-Module
P2410115
Tasks:
1. To plot the current/voltage characteristics of Ohm’s resistors and
of pure metals and to calculate
their resistivity.
You can find more
experiments in Handbook
“Physics Experiments
2. To determine the resistance of
various connecting cords by plotting their current/characteristics
and calculating the contact resistances.
3. To determine the work and power
of an incandescent bulb as a function of the applied voltage.
with Cobra3”
Order No. 01310.02
154 Laboratory Experiments Physics
PHYWE Systeme GmbH & Co. KG · D - 37070 Göttingen