(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

To concentric metal spherical shells , of radius a and b , respectively , are separated by weakly conducting material of conducting sigma

a) If they are maintained at a potential difference V, what current flows from one to the other?

2. Relevant equations

V=-[tex]\int[/tex]E *dl

V=IR

3. The attempt at a solution

E(from a to b)=Q/(4[tex]\pi[/tex][tex]\epsilon[/tex]r^2)==> V(from a to b)= Q/(4[tex]\pi[/tex][tex]\epsilon[/tex]r

E(from b to infinity)= Q/(4[tex]\pi[/tex][tex]\epsilon[/tex]_{0}r^2)==> V(from b to infinity)= Q/(4[tex]\pi[/tex][tex]\epsilon[/tex]_{0}r

I=V/R=(Q/((4[tex]\pi[/tex][tex]\epsilon[/tex]R))*(1/b - 1/a) )+(Q/((4[tex]\pi[/tex][tex]\epsilon[/tex]_{0}R)*(1/b-1/a)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Electromotive Force problem dealing with spherical shells

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**