AutoSave ON A P8 . C G 0 6 ... wa Lab 5(1) - Saved Home Insert Draw Design Layout References Mailings Review View Zotero ? Tell me Comments Editing Share Arial V 16 A A Aa A EV EVEVEE AaBbCcDdEe AaBbCcDdEe AaBbCc[ AaBbCcDd AaBbCcDdEe Editor Paste BIUvab X x |A DAY Normal No Spacing Heading 1 Heading 2 Heading 3 Styles Dictate Sensitivity Pane Lab 5 Charged Particle and Magnetic Field Part I Charged particle in magnetic field 1) Open the charge in magnetic field simulation, if a positive charged particle is shot out at 0 position to the right, predict the path, bend up or down? [Answer] 2) Set the charge value to 4 x10-16 C and use the rest numbers as given, calculate the magnetic force Answer] 3) Calculate the radius. [Answer] 4) Click Start button and measure the radius, compare it to your calculation in c), do they agree, if not, could you find out why (hint: they should agree). Answer] 5) Now, predict what happen to the radius if you increase Mass: [Answer] ic Field: [Answer] Velocity of the particle: [Answer] Charge: [Answer] 6) Now use the simulation to change one variable at a time to see if the result match up with your prediction. [Answer 7) Now, change the charge to negative to see the path of the particle, will it now bend up or down? [Answer Part II Velocity Selector and Mass Spectrometer Page 1 of 3 586 words English (United States) Focus E + 109%AutoSave ON A F3 ) . C G 0 6 ... w Lab 5(1) - Saved Home Insert Draw Design Layout References Mailings Review View Zotero ? Tell me Comments Editing Share Arial v 12 A A Aa A EV EVEVEE AaBbCcDdEe AaBbCcDdEe AaBbCc[ AaBbCcDd AaBbCcDdEe Paste BI Uvab X X |A DAY Normal No Spacing Heading 1 Heading 2 Heading 3 Styles Dictate Sensitivity Editor Pane Part II Velocity Selector and Mass Spectrometer Open the Selector and Spectrometer simulation. This simulation shows the three phases in a mass spectrometer 1) Select choice 1-Acclerator and click on play. In the acceleration phase, a particle with a positive charge is released from rest near the positive plate of a parallel- plate capacitor. The particle accelerates across the gap and comes out of a hole in the negative plate. a) Adjust and increase the electric field to see how that affects the particle. [Answer] b) Let the E=20N/C, q=+2 (electron charge), mass=1mg. Find the Electric force and acceleration on the particle. [Answer] c) Let the separation between the two plates as 1mm, find the potential difference between the two plates, find the kinetic energy of the particle in ev energy unit) when just coming out of the hole. Answer] 2) Select choice 2. Velocity Selector and click on play. In the velocity selector, there is both a downward directed electric field and a magnetic field directed into the page. The electric field applies a downward force to the particle, and the magnetic field applies a force that is initially upward a) Adjust the speed of the particle to maximum and observe the path, what happens to the particle? Which force is bigger? [Answer] b) Adjust the speed of the particle to minimum and observe the path, what happens to the particle? Which force is bigger Answer] c) Adjust and find the speed of the particle so that it will pass through straight, what is the total net force? [Answer] d) Suppose the electric field is 20N/C, find the magnetic field using the speed you find in c). Page 2 of 3 586 words English (United States) Focus + 109%AutoSave ON A F3 . C G 0 6 ... w- Lab 5(1) - Saved Home Insert Draw Design Layout References Mailings Review View Zotero ? Tell me Comments Editing Share Arial v 12 A" A Aa Ap AaBbCcDdEe AaBbCcDdEe AaBbCc[ AaBbCcDd AaBbCcDdEe Paste BI Uvab X X A DAY Normal No Spacing Heading 1 Heading 2 Heading 3 Styles Dictate Sensitivity Editor Pane [Answer] 3) Select choice 3. Mass Separator and click on play. Only particles that pass undeflected through the velocity selector enter the mass separator, which is simply a region with a uniform magnetic field directed out of the page. The radius of the path followed by a particle is proportional to the mass of the particle, so particles are separated by mass. a) Which particle has smaller mass, the one with smaller or bigger radius? [Answer] b) Use RHR-1, is this particle positive or negative? [Answer] c) Use a ruler measure directly on your own screen, the diameter for the two circles (note, the value may be different due to different screen size, your group can use one person's measure). Determine the ratio of the two particle's mass. (hint: review the circular motion of particle in magnetic field part). [Answer] Page 2 of 3 586 words English (United States) Focus E + 109%