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If a resistor Rx is connected between nodes X and Y, Ry between X and Y, Rz between Y and Z to form a delta connection, then after transformation to star, the resistance at node Z is?(a) RyRx/(Rx+Ry+Rz)(b) RyRx/(Rx+Ry+Rz)(c) RzRy/(Rx+Ry+Rz)(d) (Rz+Rx)/(Rx+Ry+Rz)I have been asked this question by my school teacher while I was bunking the class.My enquiry is from Star-Delta Transformation in chapter Useful Theorems in Circuit Analysis of Network Theory |
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Answer» Correct option is (C) RzRy/(Rx+RY+RZ) |
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