In the following network, the voltage magnitudes at all buses are equal to $1 p.u.$, the voltage phase angles
are very small, and the line resistances are negligible. All the line reactances are equal to $j1$ $\Omega$

The voltage phase angles in rad at buses $2$ and $3$ are

1. $\theta _2=-0.1,\theta _3=-0.2$
2. $\theta _2=-0,\theta _3=-0.1$
3. $\theta _2=-0.1,\theta _3=0.1$
4. $\theta _2=0.1,\theta _3=0.2$

recategorized