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[LA] Point Charges At Started: Jan 14 at 5:30pm Quiz Instructions Collaboration is OK - feel free to work with others on this assignment! .
[LA] Point Charges At Started: Jan 14 at 5:30pm Quiz Instructions Collaboration is OK - feel free to work with others on this assignment! . Estimated time required for this lab: 3 hours. . Each student will submit an individual lab. . Be sure to follow the written instructions. Failure to do so will result in loss of points. . Open the simulation in a separate tab: https://phet.colorado.edu/sims/html/charges- and-fields/latest/charges-and-fields_en.html E . Watch the lab lecture video before starting: . https://youtu.be/bi2JmeolG94 => . Images of your supporting written work will be submitted at the end of the lab, and are worth 40% of the assignment grade. Be sure submitted written work is clear and legible, with appropriate units and mathematical notation.Toggle on "Values" and "Grid" as shown: Electric Field Direction only Voltage Values Grid 0.0 V O + +1 nc -1 nc Sensors 1 meter Charges and Fields PhETNow toggle off "Electric Field\" and place three charges as shown. (Note: horizontal measurement should be as close to 4.000 m as you can get it, vertical measurement as close to 2.000 m as you can get it. Use the measuring tape and record your measurements.) Charges and Fields E Charges and Fields E . Draw the charge configuration on a piece of paper. . You'll be submitting your written work, so do a good job here. . Everything should be neat and clearly labeled, including your coordinate system and sign convention. . Engineering paper preferred. . In order to receive credit for your answers in this lab, you must show your supporting work. . Your work must be legible and logical in order to receive credit.Now consider the point P1 as shown below. You can locate its exact position using the grid. Calculate the electric eld (in unit vector form Ea) at point P1. Show all your steps and include units. Charges and Fields Question 1 5 pts Now you will measure the Eeld at point P1 using the yellow "Sensor" dot in the simulation. Drag the sensor dot to the location of P1. It will display an Eeld magnitude (in V/m) and direction (in degrees). Take a screenshot of this measurement and embed it below. Question 2 10 pts You will need to convert units of your measured value to N/L, ELas well as express it in unit vector form If, Do this work on your paper to be submitted at the end of the lab. Create the following table below (use the table function in the editor for credit Ba) and complete it with your values. Be sure to include units as well as signs that align with your sign convention. Point P1 Calculated Ex Measured EX Calculated Ey Measured Ey Question 3 5 pts Now calculate your percentage differences EL and create a table like the one shown below to present them. NOTE: If you have a % difference greater than 10%, you must redo your calculations and measurements. Point P1 % Difference Next consider the point P2 as shown below. You can locate its exact position using the grid. Calculate the electric eld (in unit vector forme) at point P2. Show all your steps and include units. Charges and Fields Question 4 5 pts Now you will measure the E-field at point P2 using the yellow "Sensor" dot in the simulation. Drag the sensor dot to the location of P2. It will display an E-field magnitude (in V/m) and direction (in degrees). Take a screenshot of this measurement and embed it below.- Question 5 10 pts You will need to convert units of your measured value to N/L, E+>_as well as express it in unit vector form If, Do this work on your paper to be submitted at the end of the lab. Create the following table below (use the table function in the editor for credit Ea) and complete it with your values. Be sure to include units as well as signs that align with your sign convention. Point P2 Calculated EX Measured EX Calculated Ey Measured IEy Question 6 5 pts Now calculate your percentage differences Ex_ and create a table like the one shown below to present them. NOTE: If you have a % difference greater than 10%, you must redo your calculations and measurements. Point P2 % Difference Ex EyFinally, consider the point P3 as shown below. You can locate its exact position using the grid. Calculate the electric eld (in unit vector forme) at point P3. Show all your steps and include units. Charges and Fields Question 7 5 pts Now you will measure the E-eld at point P3 using the yellow "Sensor" dot in the simulation. Drag the sensor dot to the location of P3. It will display an Eeld magnitude (in V/m) and direction (in degrees). Take a screenshot of this measurement and embed it below. Question 8 10 PtS You will need to convert units of your measured value to N/_C, E:>_as well as express it in unit vector form E:>_. Do this work on your paper to be submitted at the end of the lab. Create the following table below (use the table function in the editor for credit Ea) and complete it with your values. Be sure to include units as well as signs that align with your sign convention. Point P3 Calculated EX Measured Ex Calculated Ey Measured IEy Now calculate your percentage differences E>_ and create a table like the one shown below to present them. NOTE: If you have a % difference greater than 10%, you must redo your calculations and measurements. Point P3 % Difference Units for electric potential and fields Electric forces are measured in Newtons (N), electric potential energies are in Joules (J), and electric charge is measured in Coulombs (C). Since electric fields and potentials are obtained by dividing the force and potential energy by the charge, they are measured in units of MC and J/C respectively. But a "Joule per Coulomb" (1/0) is also known as a volt (V), and the electric potential is thus often referred to as the voltage. The electric field can therefore also be quoted in units of volts per meter, since V/m = N/C. Pairs of Equivalent Units Electric eld V/m N/C Electric potential V J/C Force CV/m N Potential Energy CV J A convenient unit of potential energy for describing microscopic physics, such as the energy of an electron in an atom, is the electron volt (eV). One electron volt is the potential energy change caused by moving one electron's worth of charge, e, through an electrical potential difference of one volt. Hence one electron volt equals 1.602E-19 J. Related units are keV, Me\\/, GeV, and Te\\/, which represent 103, 106, 109, and 1012 eV. These units will be used in nuclear and particle physics later in the semester. Exampl Electric elds index PERCENT DIFFERENCE When wanting to compare two values that are both determined by experimentation, we don't have a "correct" or accepted value to which to compare, so we simply look at how different the two values are as a percentage of their average value: |value 1 - value 2| (2 ) % difference = value 1 + value 2 x 100%.Question 10 40 ptS Please embed images of your supporting written work below. Note that the presentation of your supporting work is worth 40% of the grade for this lab. Be sure presented written work is clear and legible, with appropriate units and mathematical notation. I advise completing this on engineering paper if at all possible
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