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NEC Electronics · 2081 · Question 34

Three resistors of 10 Ω, 10 Ω, and 11 Ω are connected in star between nodes 1, 2, and 3. What is the equivalent delta resistance across nodes 1 and 3 opposite to the 11 Ω resistor?

Star-Delta Transformation

A32ohm
B31ohm
C30ohm
D29ohm
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