Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-L] electric field above a circular charged disk



So, am I to assume the counter intuitive result (increased field -due to electron density non-uniformity-when moving away from the centre at same height) is because of increased field at edges? This won’t happen w/ insulator uniformly charged? (density)


On another similar matter. IIRC, A cap. won’t discharge w/o fringing? Connecting wire(s) at the centre of very large parallel plate cap. (narrow spacing)


bc willing to show his ignorance.




On 2015, Jul 12, , at 09:54, CIndy <schwarz@vassar.edu> wrote:

Me too confused

Sent from my iPhone

On Jul 12, 2015, at 12:48 PM, Steve Spicklemire <steve@spvi.com> wrote:

Hmm.. what am I missing? Don’t you have to choose:

1) metal, conductor, fixed potential

or

2) insulator, uniformly charged?

but not both?

-steve

On Jul 12, 2015, at 10:00 AM, phys-l-request@www.phys-l.org wrote:
Consider a circular, uniformly charged metal disk of radius 10 (in whatever units you like).


_______________________________________________
Forum for Physics Educators
Phys-l@www.phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l
_______________________________________________
Forum for Physics Educators
Phys-l@www.phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l