# Lec-6 - Previous Lecture V and E are related V(r = E =-V P...

This preview shows pages 1–10. Sign up to view the full content.

Previous Lecture V and E are related: V ( r ) = r P E · d l E = −∇ V Capacitors in series and parallel: C eff = C 1 + C 2 parallel 1 C eff = 1 C 1 + 1 C 2 series – p.

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

View Full Document
Energy It takes work to build up a charge on a capacitor. – p.
Energy It takes work to build up a charge on a capacitor. Where is the potential energy stored? – p.

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

View Full Document
Energy It takes work to build up a charge on a capacitor. Where is the potential energy stored? The energy is stored in the electric field. – p.
Energy Density u in Field u = energy per unit volume = 1 2 0 E 2 Very general result! – p.

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

View Full Document
Energy Density u in Field dV U = u dV, where u = 1 2 0 E 2 – p.
Visualization of Fields A charged particle approaches a charged sphere. – p.5

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

View Full Document
Dielectrics Experimental fact: If we place an insulator (glass, paper, etc.) between capacitor plates, the value of C increases. Q = KC 0 V = CV – p.
Dielectrics Experimental fact: If we place an insulator (glass, paper, etc.) between capacitor plates, the value of C increases.

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• 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.

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

• 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.

Dana University of Pennsylvania ‘17, Course Hero Intern

• 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.

Jill Tulane University ‘16, Course Hero Intern