If the resistors of star connected system are R1, R2, R3 then the resistance between 2 and 3 in delta connected system will be?

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If the resistors of star connected system are R1, R2, R3 then the resistance between 2 and 3 in delta connected system will be?

asked Oct 20, 2021 in Education by JackTerrance

If the resistors of star connected system are R1, R2, R3 then the resistance between 2 and 3 in delta connected system will be? (a) (R1R2 + R2R3 + R3R1)/R3 (b) (R1R2 + R2R3 + R3R1)/R2 (c) (R1R2 + R2R3 + R3R1)/R1 (d) (R1R2 + R2R3 + R3R1)/(R3+R2) I had been asked this question during an online exam. The origin of the question is Star-Delta Transformation in chapter Useful Theorems in Circuit Analysis of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

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JackTerrance · Answer 1 · 2021-10-20T08:18:32+0000

Right option is (c) (R1R2 + R2R3 + R3R1)/R1 To explain: After transformation to delta, the resistance between 2 and 3 in delta connected system will be (R1R2 + R2R3 + R3R1)/R1 and this resistance lies between R3, R2 in delta connection.