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Electric circuits miscellaneous

  1. If an ideal centre-trapped 1 : 4 tansformer is loaded as shown in the figure, then impedance measured across the terminals AA would be

    1. 3Z
      16

    2. 3Z
      18

    3. 2Z
      3

    4. Z
      6

Correct Option: A

ZAA = (2Z)
N1
2 + Z .
N1
2 =
3Z
N2N216



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