Gauss' Law for Dielectric Medium

Gauss' Law for Dielectric Medium - Physics 202 Thursday...

Info icon This preview shows pages 1–3. Sign up to view the full content.

Physics 202 Thursday, February 19, 1999 Announcements: none Lecture notes: These notes are a continuation of last lecture's discussion of dielectrics in an electric field. The electric field induced by the dielectric points in the opposite direction of the electric field due to the parallel plate capacitor. o E o is the applied field o E i is due to the induced dipole moment. o E is the net field Net field: E = E o + E i Gauss' Law for Dielectric Medium Gauss' Law for Vacuum: E o = q/ ε o A Gauss' Law with a dielectric E = q- q i / ε o A where q i is induced charge We know that by inserting a dielectric into a capacitor, E = E o / κ = q/ κε o A = q - q i / ε o A Therefore q- q i = q/ κ ε o I (integral) κ E (dot product) dA = q o i.e. in a dielectric replace ε o with κε o Current and Resistance
Image of page 1

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

Consider the case when a battery is connected in a loop and conducting wire The battery will continuously move the charge around the loop o We can say that a constant i is being set up in the loop
Image of page 2
Image of page 3
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