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Electric circuits miscellaneous

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Electric circuits miscellaneous
  1. In the delta equivalent of the given star connected circuit, ZOR is equal to

    1. 40 Ω
    2. (20 + j10) Ω
    3. 5 + j
      10
      		 Ω
      3
    4. (10 + j30) Ω
Correct Option: D

ZQR =
5 × 10 + 10 × j10 + j10 × 5
 = (10 + j30 ) Ω
5


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