Ballistic Galvanometer Period

[hayze2728]

1. The problem statement, all variables and given/known data
I need some help in deriving the period of a Ballistic Galvanomter in terms of the current sensitivity and charge sensitivity for a report. any references would be helpful too.


2. Relevant equations
The equation I need to derive is, T=2pi(k/K)


Thanks a lot for your help.
Stefan