- #1

- 430

- 2

which you may have probably encountered in electrostatics.

We were trying to calculate the potential of an infinite line

charge distribution at a general point by first principle method i.e.

the usual integration of the potential of the differential charges on

the line charge extending from -∞ to +∞ .We got an indeterminate

form[ln(∞ )-ln(-∞)].

We realized that the reference for the potential can not be set to

infinity as we unknowingly did for the differential charge appearing

in the integration which is wrong for infinite charge

distributions.However we can not decide how to set the zero of

potential at some other point. Please help us...

Regards

aim1732 and Mayukh Nath.