The system data for a load flow solution are given in tables. Using Newton-Raphson method, determine the voltage at bus-2 the end of the first iteration.
| Line from-To | Admittance |
| 1-2 | 10-j20 |
| 1-3 | 10-j30 |
| 2-3 | 16-j32 |
| Bus no. | P(pu) | Q(pu) | V(pu) | Remarks |
| 1 | – | – | 1.05+j0 | Slack |
| 2 | 4 | 2.5 | 1+j0 | PQ |
| 3 | 2 | 15 | 1+j0 | PQ |