10 Capacitors

10 Capacitors - Craig Ogilvie Review lecture 9 Craig...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Craig Ogilvie Review lecture 9 Craig Ogilvie 11 E-field equipotentials z V E y V E x V E z y x - = - = - = E-field given by gradient of V(x,y,z) O bj1 0 1 Depends only on geometry of the pair of conductors Capacitor: pair of separated conductors Capacitance C: much charge you can store for a given VAB Capacitors in series add as inverse Capacitors in parallel add = i total C C 1 1 = i total C C Craig Ogilvie Question: 1st round, three identical capacitors C Craig Ogilvie 22 1. 3C 2. C/3 3. 2C 4. 3/2 C What is the capacitance between A and B? 0 of 30 Craig Ogilvie Question: 2nd round, three identical capacitors C Craig Ogilvie 33 1. 3C 2. C/3 3. 2C 4. 3/2 C What is the capacitance between A and B? Add bottom two in series Add two in parallel 0 of 30 Craig Ogilvie Energy Craig Ogilvie 44 QV U 2 1 = Capacitor stores potential energy Three equivalent expressions (using C=Q/V) QV CV C Q U 2 1 2 1 2 2 2 = = = Craig Ogilvie Question: energy stored, 1st round Craig Ogilvie 55 QV U 2 1 = You have a capacitor C with charge Q stored on it. You have a capacitor C with charge Q stored on it....
View Full Document

Page1 / 14

10 Capacitors - Craig Ogilvie Review lecture 9 Craig...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online