Similar to what was observed in the ice pail

Info icon This preview shows pages 3–4. Sign up to view the full content.

Similar to what was observed in the ice pail experiment, the positive charge on the charged sphere attracted the negatively charged particles from the other sphere. This is why readings closest to the charged sphere appear negative, while the readings on the far side appear positive. No contact is necessary; the simple attractive forces cause the composition of charges to change in the affected sphere. Explain the charge distribution of the isolated sphere in steps 3 and 4. The isolated sphere experienced a negative charge on the side closest to the charged sphere, and experienced a positive charge on the side farthest from the charged sphere. Explain the results obtained for step 8. No residual charge was measured after the spheres were separated. This makes sense – without the charged sphere to redistribute the charges in the isolated sphere, the charge returned to a neutral composition throughout. Part 3:
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

If the charge remains constant during the separation of the plates why do you see a change in electrometer reading? The electrometer measures in volts, not Coulombs (Coulombs are the actual unit of charge). As such, even though the charge remains constant, the output in Volts will change with different distances between the plates. Results/Discussion: As discussed in earlier sections, these experiments are meant to highlight the behaviors and interactions between charges and charged objects. In particular, the law of charge conservation is demonstrated in each trial. It is clear that charges aren’t simply produced or created, in each experiment a charge was developed by separating protons and electrons. Additionally, it is clear that positive and negative charges have strong interactions with each other, as shown by the attraction between plus and minus charges in the second experiment. While there are no accepted values to compare our results against to develop a percentage error, our results do seem relatively accurate. The positive and negative charges came close to cancelling out (the desired result) in our first experiment, and readings in subsequent experiments served to confirm the laws that deal with charges. The experiment went smoothly, but some improvements could be made. First, the lab equipment could be more accurately labeled. There were several different charge paddles, but they were in various stages of disrepair and it was difficult to tell which were appropriate for each part of the experiment. Furthermore, more up to date electrometers could lead to more accurate results – the electrometer used for this particular experiment was difficult to use and rarely gave steady solutions.
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern