# Voltage and electric field in capacitor

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.

Last edited:

gneill
Mentor
Hi Hiposi.

Welcome to Physics Forums.

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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

rude man
Homework Helper
Gold Member
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.)