Find the current provided by source for the given circuit. The given circuit is made up of two delta networks - an upper and a lower one. Convert the lower delta to wye connection and the resulting circuit is shown along. The converted wye network is made up of the resistors R10, R11 and R12. The resulting circuit is relatively easy to solve. It can be solved by finding the equivalent resistance of the series-parallel network and finding the current using Ohm's law.