Engineering Board Exam Reviewer · Circuit Theorems and Conversions · medium
The delta network shown has RAB=120, , RAC=60, , and RBC=180, . Find the equivalent Y resistor RA connected to terminal A.
- 180,
- 60,
- 20,
- 120,
Answer
C. 20,
Solution
For a delta-to-wye conversion, each Y resistor equals the product of the two adjacent delta resistors divided by the sum: RA= RABRACRAB+RAC+RBC=(120, )(60, )/360, =20, .
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