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Short circuit test on transformers is conducted to determine ______

Short circuit test on transformers is conducted to determine ______ Correct Answer Copper losses

Short circuit test is used to determine the copper losses taking place in the transformer under operation, while open circuit test gives us the value of core losses taking place in the transformer.

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Short circuit test on transformers is conducted to determine
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Open circuit test on transformers is conducted to determine
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Short circuit test is performed on a transformer with a certain impressed voltage at rated frequency. What will happen if the short circuit test is now performed with the same magnitude of impressed voltage, but at frequency higher than the rated frequency?