Electrical Engineering ⇒ Topic : Nodal Analysis

Mason
 
The procedure for nodal analysis of an a.c. network is the same as that for a d.c. network except that we have to deal with impedances instead of resistances and that the phase angle of all quantities (e.g. impedances, voltages and currents) must be taken into consideration. Remember that nodal analysis requires the selection of one of the * principal nodes as the **reference node. We can apply Kirchhoff's current law to any principal node (except the reference node) to find its node voltage. Once node voltages at principal nodes are determined, the branch currents can be easily calculated. Note. Since one nodal equation can be written for each principal node except the reference node, the number of equations required for solution will be (n 1) where n is the number of principal nodes in the circuit.  
 
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