Lab 2

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School

The University of Tennessee, Knoxville *

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Course

122

Subject

Electrical Engineering

Date

Apr 3, 2024

Type

docx

Pages

2

Uploaded by AgentCheetah1056

Experiment 2–Electric Fields Introduction: The goal of the lab was to establish the electric field created by charged conductors of the shapes provided. Procedural Notes: the first few steps is just showing us how to set up the machine and how to set up the voltage meter The probe was used to locate a point where the potential was measured to be 0-10 volts. First starting near the negative electrode then choosing other points about one ish centimeters apart. Data: Calculation : First configuration Reading at X C 0.25 cm left is 1.5V, 0.25 cm right is 2.7V.     2.4 V/cm Reading at X A 0.25 cm left is 3.9 V, 0.25 cm right is 4.5 V     1.2 V/cm Reading at X B 0.25 cm left is 7.6 V, 0.25 cm right is 8.5 V     1.8 V/cm Calculation : second configuration X C right is 3.3 V, left is 3.1 V 0.4 V/cm X A right is 5.3 V, left is 4.8 V 1 V/cm X B right is 9.4 V, left is 9.0 V 0.8 V/cm
POST LAB 1.Write Reflections on your lab today. In today’s lab 2.If the potential is the same everywhere on the conducting electrodes, what is the electric field strength in each electrode? If the potential is the same everywhere on the electrodes, then the electric field strength in each electrode will be zero. 3. If a volt is joule/coulomb, show that a newton/coulomb and a volt/meter are equivalent. 1 volt = (1 newton * 1 meter)/coulomb 1 volt/meter=1 newton/coulomb 4. Why is it not possible for two different equipotential lines to cross? because they are by definition a line of constant potential. 5. Under what conditions will the field between the electrodes of a parallel plate configuration be uniform? you need parallel plates with equal and opposite charges 6.Why are the equipotential lines near a conducting surface parallel to the surface? Hint: Since charges are free to move on a conductor, the electric field near a conductor is perpendicular to the conductor's surface. The equipotential line is the region where potential are equal and the distance between all points should be constant 7.Describe how a uniform electric field might be used to measure distance. Hint: In the parallel electrode arrangement, what parameter(s) varied with distance between the electrodes and what parameter(s) stayed constant? a capacitive displacement sensors where the linear relationship between potential difference and distance ensures a reliable and effective distance of quantification. Summary: The lab successfully demonstrated equipotential surfaces and perpendicular electric fields, but defective batteries caused voltage measurement errors. Repeated experiment needed for improved battery use and deeper understanding.
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