
TY  - JOUR
A1  - Ross, DK 
T1  - The Potential Due to Two Point Charges Each at the Centre of a Spherical Cavity and Embedded in a Dielectric Medium
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1968
VL  - 21
IS  - 6
SP  - 817
EP  - 822
KW  - 
UR  - https://doi.org/10.1071/PH680817 
N2  - A method is found for determining the electrostatic potential due to two separated spherical cavities each containing a point charge with the whole system embedded in a continuous dielectric medium. The potential is obtained as a sum involving Legendre polynomials and it is shown that the coefficients of this series can be expanded as a convergent power series in the reciprocal of the distance between the centres of the cavities. This solution is suitable for numerical calculations because there is a simple relationship between successive terms in the series and because this series is convergent even at contact separation. 
ER  -

