Physics 132 - General Physics II - Professor Bunson
Fall 2001



Today's Lecture (9/19):
Summary:
  • When we have two capacitors in parallel, the voltage across them will be the same. This leads to a formula for capacitors that says we can just add the capacitances if they are all in parallel.



  • If we have two capacitors in series in a circuit, the charge will be the same for each. This results in the capacitors adding as "inverses".



  • If we want to know the electric field inside a polarizable material rather than air, we need to multiply the permittivity constant by a factor called the dielectric constant.
Conceptests:

None today

Worked Problems:

Today's problem

Links:

None today


Assignments:

Next Reading Assignment (due 9/21)
Next Homework (due 9/26)


Diversion-of-the-week:

This week's diversion should help with studying for exams by teaching you tricks for remembering things. One way to do this is via memory pegs. These are words or pictures to which you can attach a memory. (The trouble is remembering to use the pegs ;-) Poke around this website for other good exam advise, too.


Page last updated on August 15, 2001.
Please contact the WebEditor with site-related questions.