Voltage and electric field in capacitor

  • #1
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1. We've been given a spherical capacitor with radius of 1 cm for inside electrode and 2 cm for outside electrode. Voltage between electrodes is 360 V and the task is to find largest and smalles electric field strength in capacitor.


2. I'm not sure how voltage given in capacitor works and how to calculate electric field strength with only these things given.

3. I've done capacity calculations given those radius but this is the first time I've been given a voltage to work with.
 
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Answers and Replies

  • #2
gneill
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Hi Hiposi.

Welcome to Physics Forums.

Please do not erase the formatting template from the edit window when you create a homework help request. Use the template to format your question/request.

Have you done a web search on "spherical capacitor"? What have you found? The Hyperphysics website has a good introduction:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capsph.html
 
  • #3
rude man
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Hint: go with Gauss's theorem for electrostatics.
(Gauss's theorem is actually a purely mathematical theorem but when combined with one of Maxwell's equations it's referred to as such in electrostatics also.)
 

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