01-2426-Electric Field and Potential-LAB REPORT-Online(1)(1)

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University of Texas, Rio Grande Valley *

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2426

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Physics

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Feb 20, 2024

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Lab 1: Electric Field and Potential (Online Version) PHYS 2426 Course & Section: PHYS-2426-E Names: 1. Jaime Carrizales 4. Althea Trinidad 2. Cynthia Villarreal 5. Edgar Jimenez 3. Marisol Robles Aguirre 6. Lab Report Part I. A Single Positive Charge Paste below the final graphic generated in steps 1-9 ANALYSIS OF ELECTRIC FIELD MEASUREMENTS
Table 1 – Single charge Pair of points #1 Pair of points #2 Pair of points #3 Pair of points #4 Pair of points #5 Potential difference between two points, V (Volts) 19.2 6.1 4.1 2.2 1.4 Distance between two points, d (m) 0.2 m 0.2 m 0.2 m 0.2 m 0.2 m Calculated electric field strength, E (V/m) 96 30.5 20.5 11 7 Sensor measured electric field strength, E (V/M) 99.7 37.4 19.2 10.9 7.16 % Error between calculated E and measured E -3.7% -18.45% 6.77% 0.92% -2.23% Part II. A Dipole Paste below the final graphic generated in steps 1-9
Table 2 – Dipole Pair of points #1 Pair of points #2 Pair of points #3 Pair of points #4 Pair of points #5 Potential difference between two points, V (Volts) 20.8 7.2 3.9 2.5 1.8 Distance between two points, d (m) 0.2 0.2 0.2 0.2 0.2 Calculated electric field strength, E (V/m) 104 36 19.5 12.5 9 Sensor measured electric field strength, E (V/m) 103 37.2 19.5 12.4 8.95 % Error between calculated E and measured E 0.97% -3.22% 0% 0.80% 0.55% Make sure to calculate the percentage errors of your results between the calculated and sensor- measured values and fill them into the last rows of Table 1 and Table II. Questions: 1. We have physically shown that the electric field line is perpendicular to the equipotential line. Why is this always the case?
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Electric field lines are always perpendicular to equipotential lines, as they cannot be modified by moving them. This implies that no work will be done in the electric field. 2. Calculate the work done by the electrostatic force to move the charge with the magnitude of 1nC between two points 2cm spaced, along the equipotential line, corresponding to the potential of 1V. q = 1nC d = 2cm =0.02 ? 1 = ? 2 = 1? ? = 𝑞∆? ? = 1 ∗ 10 −9 ⋅ (1? − 1?) ? = 0𝐽 The work done by the electrostatic force to move the charge is 0𝐽 Conclusions Formulate the conclusions based on the objectives of this lab and the obtained results. According to the data collected during this experiment, the strength of the electric field changes as the distance between the chosen point and the charge changes. Therefore, when the point is further from the charge, the electric strength will decrease, whereas when the point is closer to the charge, the electric field strength will increase. In fact, the electric fields are strongest at the nearest points to the charge, as can be seen by examining the locations selected.

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