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Electrical Measurement

# Electrical Measurement - Electrical Measurement Performed...

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Electrical Measurement Performed By: Jesse Rosalia – Manager Travis Shelton – Recorder Kai Wong – Skeptic Instructor: Professor Martin Okafor Date of Experiment: January 19, 2011

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Overview: In the electrical measurement lab, we as the students will be performing testes using different types of electrical equipment. These types of equipment include the digital multimeter, voltmeter and ammeter. Our goal of this experiment is to become familiar with these instruments in order to be successful in future lab experiments. On the other hand, we will be applying Ohm’s law where resistance is a ratio of voltage to current, where = R VI . In the end of this experiment, we should be able to fully understand to use of the multimeter, voltmeter, ammeter and proving Ohm’s law. Theory : This experiment should give us practice on how to properly use a digital multimeter, diagrams, and other electrical equipment to measure resistance, current, and voltage in objects. By correctly using a digital multimeter(DMM), red & black leads, alligator clips, and power source we should be able to record measurement values with minimum error with that accepted for four color coded wire resistors. Resistance is the ratio of Voltage(V) across a Current(I) flowing through it. Resistance is measured in ohms, Ω. Equation: R = V/I In this experiment we will be testing our digital multimeter and power supply source against wire resistors. Wires are ideal to use since they are good conductors with very low resistance making them capable of carrying a current from one object to another. Resistors are objects with high
resistance made of carbon films. The wire resistors used in this lab are color coded. The color code gives us an accepted magnitude of resistance and tolerance level for each wire. This lab introduces the use of circuit diagrams. These diagram help give a visual

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Electrical Measurement - Electrical Measurement Performed...

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