In the circuit shown in the figure `R_(1) = R_(2) = 5 Omega, C_(1) = C_(2) = 2 mu f and epsilon_(1) = epsilon_(2) = 5 V`. Switch `S_(1)` is kept closed for a long time. Now switch `S_(2)` is also closed. Immediately after `S_(1)` is closed, find
(a) current through `R_(1)`
(b) current through `R_(2)`