The switch in the circuit shown in below image has been closed for a long time, and the current through the battery and the charge on the capacitor are no longer changing. At t = 0 the switch is opened. Determine the following in terms of R, C, ehm, and t. Find the current through the battery before the switch is opened.Express your answer in terms of some, all, or none of the variables ? (ehm) and R.

I_ehm,0=????????