Section Section ANALYSIS: (for your DROP 2 only) 1. Show your calculation for the volume V sphere of an oil drop given that the oil drops are spherical. Column Break 2. Section Show your calculation for the mass m of an oil drop given that the density of oil is p = 900 kg/m' 3. Show your calculation for the equivalent forces FE = F 4. Show your calculation for the electric field & given that the plates are separated by Ad = 0.0030 m. 5 . Show your calculator for the electric charge q . Column Break Section CONCLUSIONS: . Should the electric charge q be positive or negative? Explain how you know. (hint: look at the plates in the applet!) 7. Answer the following questions: a. The charges in Table 2 are all multiples of which elementary charge? b. How many of this elementary charge make up the electric charge q of your DROP 2? VMILLIKAN'S OIL DROP EXPERIMENT (SIMULATION LAB) https://www.thephysicsaviary.com/Physics/ Programs/ Labs/ Milli kanOilDropLab/index.html PURPOSE: To determine the charge on small electrically charged oil drops using Millikan's method. Millikan Oil Drop Lab You are viewing the drop that is in Equation Measure the radus of the drop The oil density is 900 kap/in*3 Calculate the Volane and Mass of the chop Calculate the Fg on the drop Sot Fo = Fg The AV between plates is 19.1 V Calculate the Electric Field between the plates Find the charge on the oil drop. scale in nm Return to Main Millikan Oil Drop Lab If you have calculated the charge on this drop, spray more oil and repeat the calculation for a new drop. Collect data on at least 10 drops. Look for a pattern in your data or share data with class and look for pattern in all the data. Millikan Oil Drop Apparatus Forces @ Equilibrium Fe = qE Fg = mg PROCEDURE: A. Open the applet. Click the oil sprayer bulb. When a particle is suspended, click the microscope. B. Record the relevant values in Table 1. Perform enough trials to complete the table. C. Use the values of Table 1 to complete Table 2.PROCEDURE: A. Open the applet. Click the oil sprayer bulb. When a particle is suspended, click the microscope. B. Record the relevant values in Table 1. Perform enough trials to complete the table. C. Use the values of Table 1 to complete Table 2. UDJLIVATIONS Table 1: Potential difference vs. Oil Drop Table 2: Volume, Mass, Force, Electric Field, and Charge of Oil Drop with Density p = 900 kg/m' and Ad = 0.0030 m . POTENTIAL RADIUS VOLUME MASS EQUIVALENT ELECTRIC ELECTRIC DIFFERENCE FORCES FIELD CHARGE DROP AV(V) r (m) V sphere ( m3 ) m (kg) FE = Fg (N ) E (N / C) 9 (C) 12.4 V 2.6 x10^-7 m 2 13.5 V 4.9 x101-7 m 3 19.5 V 6.1x10^-7 m 18 V 4 5.9x 10^-7 m 5 15 0 3.5 x10^-7 m 10.3 V 6 4.2 x101-7 m 7 11.5 V 5.1 x101-7 m 12.6 V 8 5.0 x101-7 m 18.4 V 5.4 x101-7 m 10 18.1 V 5.09 x101-7 m