Page 213 - Basic Electrical Engineering
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Students should remember that the terminals between which the equivalent
               resistance has to be calculated have to be kept intact in the transformation
               process.



               Example 2.37    Calculate the current, I supplied by the battery in the circuit
               shown in Fig. 2.129.




























                                                         Figure 2.129

               Solution:



               Instead of applying Kirchhoff’s laws and writing the loop equations, we will
               convert the delta between ABC or BCD into equivalent star and then make

               simplifications to calculate I as
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