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Physics 2 Lab Worksheet Dep. Of Applied Physics and Astronomy Spring 2019-2020 University of Sharjah Capacitors 1 Name : Ccahuata Sara Rodrigo Frank ID#: 2021202621 Construct the following electrical circuit (Capacitor), using PhET simulation, or using the following link. https://phet.colorado.edu/en/simulation/legacy/capacitor-lab You have to play and enjoy using this simulation to be familiar with, because we are going to use during this period. We have three parts to do using this simulation Physics 2 Lab Worksheet Spring 2019-2020 First Part: Capacitance and Area C=โโA/d: In this part the distance, d, between the plates is kept constant d= 10x10 -3m and the area of the plates is changed. You are to record the values for area (in m2) and the capacitance C (in F). Take at least eight values of A and C, and then fill the table below: d= 10x10-3 m A (m2) C (F) ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ 1- Use Excel to plot the relationship between A and C. Valores Y 1.2 y = 0.0086x + 0.0267 1 0.8 0.6 0.4 0.2 0 0 20 40 60 80 100 120 140 Physics 2 Lab Worksheet Spring 2019-2020 2- Draw the best straight-line equation and determine its slope. y = 0.0086x + 0.0267 3- From the slope, determine the value of the permittivity of free space โแต. 4- Determine the percentage error using the real value โแต=8.85X10-12 C2/N.m2 ๐. ๐๐ โ ๐๐โ๐๐ โ ๐. ๐๐ โ ๐๐โ๐๐ โ ๐๐๐ ๐. ๐๐ โ ๐๐โ๐๐ ๐. ๐๐% Physics 2 Lab Worksheet Spring 2019-2020 Second Part: Capacitance and distance C=โแตA/d: In this part the area, A, of the plate is kept constant A= 100x10-6 m2 and the distance d between the plates is changed. You are to record the values for distance (in m) and the capacitance C (in F). Take at least eight values of d and C, and then fill the table below by calculating (1/d): A= 100x10-6 m2 d (m) ๐๐๐๐๐โ๐ ๐. ๐๐๐๐โ๐ ๐๐๐๐โ๐ ๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐โ๐ ๐. ๐๐๐๐โ๐ ๐๐๐๐โ๐ 1/d ( m-1) 100.00 105.26 111.11 113.64 116.28 126.58 140.85 166.67 1- Use Excel to plot the relationship between (1/d) and C. C (F) ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ ๐. ๐๐๐๐๐โ๐๐ Physics 2 Lab Worksheet Spring 2019-2020 c 1.60E-13 1.40E-13 1.20E-13 1.00E-13 8.00E-14 6.00E-14 y = 9E-16x + 1E-15 4.00E-14 2.00E-14 0.00E+00 0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 2- Draw the best straight-line equation and determine its slope. y = 9E-16x + 1E-15 3- From the slope, determine the value of the permittivity of free space โแต 4- Determine the percentage error using the real value โแต= 8.85X10-12 C2/N.m2 ๐. ๐๐ โ ๐๐โ๐๐ โ ๐. ๐๐ โ ๐๐โ๐๐ ๐. ๐๐ โ ๐๐โ๐๐ ๐. ๐๐% โ ๐๐๐ Physics 2 Lab Worksheet Spring 2019-2020 Third Part: Capacitance and Charge & Voltage:CV=Q 1- Connect the circuit shown in the first part. 2- Set the real value of the capacitor C=0.89x10-13F. 3- Change the value of the power supply V, then record the values for the charge Q (in C) and the potential difference V ( in V) Capacitance real from PhET (0.89x10-13)F V(Volts) Q(C) 0.238 V ๐. ๐๐๐๐๐โ๐๐ 0.327 V ๐. ๐๐๐๐๐โ๐๐ 0.387 V ๐. ๐๐๐๐๐โ๐๐ 0.446 V ๐. ๐๐๐๐๐โ๐๐ 0.506 V ๐. ๐๐๐๐๐โ๐๐ 0.774 V ๐. ๐๐๐๐๐โ๐๐ 1.012 V ๐. ๐๐๐๐๐โ๐๐ 1.5V ๐. ๐๐๐๐๐โ๐๐ Physics 2 Lab Worksheet Spring 2019-2020 4- Plot the relationship between Q and V (first column) using Excel, and then determine the value of the slope Q 1.40E-13 1.20E-13 1.00E-13 8.00E-14 6.00E-14 4.00E-14 y = 9E-14x + 2E-17 2.00E-14 0.00E+00 0 0.2 0.4 0.6 0.8 1 5- From the slope determine the value of C ( in F) 6- Calculate the percentage error in your result. 1.2 1.4 1.6 Physics 2 Lab Worksheet Spring 2019-2020 Fourth Part: Voltage and Electric field V=Ed: 123- Connect the power supply across the capacitor and record it value V(in volt) Record the value of the distance d (in m) between the plates of the capacitor. Use the formula V=Ed, to determine the electric field (E) between the plates 4- Calculate the charge Q ( in C) of the capacitor using the formula E=Q/Aโแต 5- Compare the value of charge with the value shown from PhET. C(F) PhET V(V) 1.5 V d(m) E No esta habilitado A Q ๐๐๐๐๐โ๐ ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐ Calculations 1.5 V ๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐๐ ๐๐๐๐๐๐โ๐ ๐. ๐๐๐๐๐โ๐๐