C: The right side of the control panel allows you to see on in the lab. Use the what’s going Pan-Tilt-Zoom controls to move the selected camera and see different parts of the apparatus. Figure 7 - Camera Controls Hovering over the Preset buttons will cause a text box to pop up that tells you what each button will show you. This activity has two cameras connected to it. You can see Camera 2 at the right side of the screen. It is the one you will use to view the electron beam inside the discharge tube. D: The Helmholtz coils and discharge tube are located inside the box on the right side of the apparatus. Camera 2 is looking down a tube directly at the device. Figure 8 - Helmholtz Coil Case When you send amperage to the Helmholtz coils and voltage to the electron emitter inside the discharge tube, you will form a ring of electrons. Switch to Camera 2 to view this (Figure 9). Figure 9 - Looking down the tube with Camera 2 Notice that the electron ring looks far away. To get a close-up view and make measurements, select Preset 2. See the next figure for the close-up view.
C: The right side of the control panel allows you to see what’s going on in the lab. Use the Pan-Tilt-Zoom controls to move the selected camera and see different parts of the apparatus. Figure 7 - Camera Controls Hovering over the Preset buttons will cause a text box to pop up that tells you what each button will show you. This activity has two cameras connected to it. You can see Camera 2 at the right side of the screen. It is the one you will use to view the electron beam inside the discharge tube. D: The Helmholtz coils and discharge tube are located inside the box on the right side of the apparatus. Camera 2 is looking down a tube directly at the device. Figure 8 - Helmholtz Coil Case When you send amperage to the Helmholtz coils and voltage to the electron emitter inside the discharge tube, you will form a ring of electrons. Switch to Camera 2 to view this (Figure 9). Figure 9 - Looking down the tube with Camera 2 Notice that the electron ring looks far away. To get a close-up view and make measurements, select Preset 2. See the next figure for the close-up view.
PHY%20-%20RWSL%20Charge%20to%20Mass%20Ratio%20of%20the%20Electron%20%20-%20Spring%202014.docx