To determine the impedance of a transformer, first compute the full load current rating of the secondary winding using the formula I = E / VA.

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To determine the impedance of a transformer, we need to first compute the full load impedance of the secondary winding using the formula Z = V / I. We cannot compute impedance using the formula I = E / VA, which gives us the current rating of the secondary winding.

To Determine the Impedance of a Transformer, First Compute the Full