14. A wye-connected balanced three-phase load draws 75 A from 230 V, 60 Hz, source. To measure the total power, two wattmeters are connected in lines A and C and reads 8,625 W and 17,250 W, respectively. Determine the impedance of the balanced load. A. 3.07Z30° B. 3.774-30° 2. C. 1,77/30° N D. 1.77Z-30° SN

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Nodal Analysis

In the analysis of any electric circuit, nodal analysis is the method of determining the potential difference or voltage between different nodes in an electric circuit. A node is a point where two or more branches connect each other. In the nodal analysis, the voltages are determined in the terms of branch currents. The nodal analysis is also known as the node voltage method or branch current method. The nodal analysis method is one of the several applications of Kirchhoff's Current Law (KCL).