MadisonBoughton_ElectricFields:Potential

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Physics

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Dec 6, 2023

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Electric Fields and Electric Potential Madison Boughton Yeshwanth Sangishetty 10/27/2023
Objective: The purpose of this lab is to map and explore electric fields around different charges. Explore the behavior of a charged pith ball suspended in a uniform electric field of parallel plates and determine the strength of the field and potential difference between the charged plates. Then determine the magnitude and direction of the charged particles. Experimental Data: Part 1: Table 1: (As indicated in the list of parameters on Canvas-Module 2) Distance from charge r (m) Point charge q (nanocoulombs) 0.85 m +2 nC Table 2: E p1 E p2 E p3 E p4 E average 23.9 V/m 24.5 V/m 25.2 V/m 24.5 V/m 24.525 V/m Part 2: Table 3: Ball charge (Coulombs) Deflection angle (degrees) Ball mass (g) Plate separation distance (cm) 3.873 * 10 -9 C 8.0 0.05 g 20 cm Data Analysis: Part 1: Calculate the electric field at one of the points in your configuration. k=8.99*10^9 N*m^2/C^2 E = k | q | r 2 E = 8.99 10 9 N m 2 / C 2 | + 2 | 0.85 2 = 2.49 10 10 V / m Calculate the percent discrepancy between the above value and your average E.
E = | 24.525 V m 2.49 10 10 V m | 24.525 V m = 1.02% Part 2: Draw a free-body diagram of the pith ball. Using newton’s second law, calculate the electric field between the two plates. E = ( 0.05 g 9.81 tan ( 8.0 ) ) 3.873 10 9 C = 17,798.94 V m Using this field, calculate the potential difference between the two plates. V = Ed V = 17,798.94 ( 0.20 m ) = 3,560 V T Fe mg
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