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Coulomb's Law Lab Background: The Coulomb constant \"I: "' is named after CharlesAugustin de Coulomb. This constant is associated with the electric force and is also known as the electric force constant. When charged particles interact, a force repels or attracts the particles. For instance, two like charges {such as a proton and a proton] repel each other and travel in opposite directions and two unlike charges {such as an electron and a proton) will be attracted to each other. The electrostatic force equation is shown below: |v1llq2| 1.2 Where r is the separation distance between the charged objects, it = 8.988 X 18'9 Nmzf'z. F=k Procedure: 1. Navigate to following link to access the lCoulomb's lab simulation. htt s: het.co|orado.edu sims tml coulombslaw latest coulombslaw en.html 2. Select "Macro Scale\" 3. Take few minutes to explore the simulation. Record at least two observations. 4. Set charge 1 to "18 ,uE" and set charge 2 to "1m\". [Remember 1 .uf.' = 1 X illEC] 5. Make sure force value box is checked. 8. In data table below the separation distance "r" is given to vou. Separate the charges by 18 cm. Ir'. Record the value for the separation distance in meters. 8. Record the force value in data table. It does not matter which force value you use since you are only recording the magnitude of that force. 9. Repeat the process for the rest of the \"r\" values. 18. Find 1,133 and record in the data table. Data: 1|I.I"a|ue of tn: (:2: UT 4 3 2 Data Analysis: 1. Once you have completed data table create a graph of Force (Y-axis) vs. Separation Distance (X- axis). Note: You can use any kind of graphing software (Excel, open source, etc.) or graph sheet to create the graphs. If you are drawing the graphs by hand on a graph sheet draw them to a scale. 2. Create a second graph of Force (Y-axis) vs. 1/ 2 (X-axis) Note: You can use any kind of graphing software (Excel, open source, etc.) or graph sheet to create the graphs. If you are drawing the graphs by hand on a graph sheet draw them to a scale. 3. Calculate the slope of the 2" graph and use that value to calculate value of the Coulomb's constant "k". Show the calculation. 4. Calculate the percentage error. The known value of k = 8.988 x 109N . m2/c2 [experimental value - accepted value % error = X 100% accepted value