(Solved): 3. In the three phase system shown in Fig. 3 , the sequence of the sources is a positive sequence w ...

3. In the three phase system shown in Fig. 3 , the sequence of the sources is a positive sequence with ${\stackrel{?}{\mathrm{V}}}_{\mathrm{AB}}=380?30^{?}\mathrm{V}$ rms, $Z=11?60^{?}?$. Find the average power $P$ absorbed by the three-phase circuit, and the line current ${\stackrel{?}{\mathrm{I}}}_{\mathrm{C}}$. Fig. 3 4. Find the value of $R_L$ for maximum power transfer in the circuit of Fig.4. Find the maximum power $P_{\max }$ absorbed by $R_L$. Fig. 4