AutoSave OFF w- Lab 7 Capacitance(1) - Saved to my Mac Q Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (Bo... v 12 A A Aa A 24 T AaBbCcDdEe AaBbCcDdEe AaBbCcDc AaBbCcDdE AaBb( AaBbCCDdEE Paste BIUvab X X A DAY Norma No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Sensitivity Pane Capacitance Purpose Examine the factors that affect the capacitance of a parallel-plate capacitor and find the permittivity of free space. Capacitance: Parallel-plate capacitor: C = = C= Ed Q - charge, in C A - area, in m2 V - potential difference, in V d - distance between the plates, in m So - permittivity of free space E. = 8. 85 x 10-12 C2 / N . m2 Procedure Go to https://phet.colorado.edu/sims/html/capacitor-lab-basics/latest/capacitor-lab-basics en.html To change the separation of the plates, click on the arrows next to "Separation" and drag them up or down. To change the area of the plates, click on the arrows net to "Area" and drag them. Part 1: Capacitance and Area 1. Choose a value for the distance between the plates and record in the Data Table. You will not change this distance for Part 1 of the lab. 2. Change the area of the plates and record the area and capacitance in the Data Table. Take 8 different measurements 3. Use Excel or Google Sheets to plot C vs A. Label your axes and provide a meaningful title for your graph. 4. Add a trendline (use linear fit) and display the equation of line on your graph. Take a screenshot of the graph and include in the lab report. Page 1 of 6 676 words English (United States) Focus E + 98%AutoSave Lab 7 Capacitance Home Insert Draw Design Layout References Mailings Review View Q Tell me share Cleomments [on V X ca'ibmmm V 12 " AA AV Aa" A0 ' AaBchDdEe AaEchDdEe AaBbCCD( AaBchDdEt A Bb( \"FWD\"! L I " F V [E] a > l Paste 6 E I g , ab x2 x A ., I ., A ., Normal NoSpacing Headingi HeadlngZ Title Subtitle Sptzl'ees Dictate Sensitivrty 5. What does the slope represent? 6. Use the slope to find the permittivity of free space. Show your work. ' 7. Calculate the percent error. at In a sentence or so, give the relationship between capacitance and area of the plates. Par! 2: Capacitance and Plate Separation 1 choose a value for the area of the plates and record in the Data Table You will not change the area of the plates for Part 2 of the lab. ' 2. Change the distance between the plates and record the distance and capacitance in the 1 Data Table. Take 8 different measurements 3. Use Excel or Google Sheets to plot C vs ii. Label your axes and provide a meaningful title . for your graph. 4. Add a trendline (use power fit) and display the trendline equation on your graph. The equation should be in the form: y = car" where y is rapaoltanoe and x is plate separation. Take a screenshot of the graph and include in the lab report. i 5. Using that the coefcient c = Cd and C = EDA/d, find the permittivity of free space 2... ' Show your work 1 6. Calculate the percent error. 7t In a sentence or so, give the relationship between capacitance and plate separation. Part 3: Charge and Potential Difference 1. Choose a value for the capacitance and record in the Data Table. Vou will not change the capacitance of the capacitor for Part 3 of the lab. 2. Change the value of the power supply. Measure the potential difference between the plates using a voltmeter. Record the potential difference and the charge on the plates in the Data Table. Take 8 different measurements. n Page 2 of 6 676 words '1? English (United States) . m AutoSave OFF w- Lab 7 Capacitance(1) - Saved to my Mac Q Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (Bo... v 12 A" A Aa Ap AaBbCcDdEe AaBbCcDdEe AaBbCcDc AaBbCcDdE AaBb( AaBbCCDdEE Paste BIUab X X A DAY Norma No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Sensitivity Pane Capacitance 0.53 PF Top Plate Charge 0.45 pC Stored Energy Separation 4.2 mm Plate Area 250 mm? .WV 1.5V - ov - Voltage 0.850 V 3. Use Excel or Google Sheets to plot Q vs V. Label your axes and provide a meaningful title for your graph. 4. Add a trendline (use linear fit) and display the equation of line on your graph. Take a screenshot of the graph and include in the lab report 5. What does the slope represent? 6. Use the slope to find the capacitance. Show your work. 7. Calculate the percent error, using the value of C from the simulation as the accepted value. 3 Page 3 of 6 676 words English (United States) Focus E + 98%w- Lab 7 Capacitance(1) - Saved to my Mac Q AutoSave OFF Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (Bo... v 12 A A Aa Ap EVEEVEE 24 T AaBbCcDdEe AaBbCcDdEe AaBbCcDc AaBbCcDdE AaBb( AaBbCCDdEE BIUvab X X A DAY Norma No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Sensitivity Paste Pane Data Sheet: Capacitance Part 1: Capacitance vs. Area distance between the plates, d =. mm = m C (PF) A (mm2) Equation of trendline: C/A = _pF /mm2 (from the equation of trendline) = _ F/m2 & = C2 /N . m2 (show work) Percent error: (show work) 4 English (United States) Focus E + 98% Page 4 of 6 676 wordsAutoSave OFF w- Lab 7 Capacitance(1) - Saved to my Mac Q Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (Bo... v 12 A A Aa Ap EVENEEVEE AaBbCcDdEe AaBbCcDdEe AaBbCcDc AaBbCcDdE AaBb( AaBbCCDdEE Paste BIUvab X X A DAY Norma No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Sensitivity Pane Part 2: Capacitance vs Plate Separation area of the plates, A = mm' = . m2 C (PF) d (mm) Equation of trendline: Cd = pF . mm (from the equation of trendline) = F . m & = C2 / N . m2 (show work) Percent error:. (show work) 5 Page 5 of 6 676 words English (United States) Focus E 98%w- Lab 7 Capacitance(1) - Saved to my Mac Q AutoSave OFF Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (Bo... v 12 A A Aa Ap AaBbCcDdEe AaBbCcDdEe AaBbCcDc AaBbCcDdE AaBb( AaBbCCDdEE BIUvab X X A DAY Norma No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Sensitivity Paste Pane Part 3: Charge and Potential Difference capacitance, C = . PF= Q (pc) V (V) Equation of trendline: Q/V = pC/V (from the equation of trendline) = C/V C = F (show work) Percent error: (show work) 6 Page 6 of 6 676 words English (United States) Focus E + 98%