What is the remaining energy stored in the capacitor after a discharge time of t=τln(2)t = \tau \ln(2)t=τln(2)?
E02\frac{E_0}{2}2E0
E04\frac{E_0}{4}4E0
E0e2\frac{E_0}{e^2}e2E0
E02\frac{E_0}{\sqrt{2}}2E0
