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The next class needs them too!
PHYS-1200
PHYSICS II
SPRING 2006
Class 4 Activity: Current and Resistance
RESULTS
This experiment has two parts. In part I you will investigate the electrical properties of a light
bulb and a commercial resistor. In part II, you will examine the temperature dependence of
resistance.
Part I.
Ohmic vs. Non-Ohmic Resistors
Equipment:
---- DC Power supply & volt meter (source of the emf)
---- Multimeter used as an ammeter
---- four different resistors
---- three banana connector cables
---- Liquid Nitrogen and Styrofoam cup
1) Connect the circuit using the light bulb as the resistor as shown below.
E
is a source of emf,
the DC Power supply; it provides a potential difference, or voltage, to the circuit. A
voltmeter is already built into the power source to measure the potential difference at its
output. A is the multimeter, set to operate as an ammeter, and wired in series so all the
current flows through it.
R
is the light bulb.
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- Spring '06
- Stoler
- Physics, Current, Resistance, Resistor, Incandescent light bulb, Electrical resistance, DC Power Supply
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