lab 4 - Experiment: Ohm's Law Experiment number: 4 Date:...

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Experiment: Ohm’s Law Experiment number: 4 Date: 2/12/2008
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Purpose: The purpose of this lab is to study the connection between the electrical current and the voltage drop in a circuit element. Apparatus: Items needed for this experiment are: 1. Power Amplifier 2. Voltage Sensor 3. Current Sensor 4. DataStudio 5. Computer 6. Resistors 7. Light Bulb 8. Connected Wires Method: In this experiment two types of electrical devices, the current sensor and voltage sensor, were used to measure the voltage across and current through each. The two types of elements whose resistance were measured are a fixed value resistor and a tungsten lamp. Results: Throughout part one different resistors were used to show the output in amperes and volts. With the used of a graph, the slope was found and used to compare the measured equivalent resistance with the theoretical value. Using this information, a percent difference was acquired. This same method was used in part two using the tungsten lamp. Interference:
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lab 4 - Experiment: Ohm's Law Experiment number: 4 Date:...

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