EXAMIANS
The primary winding of a power transformer should always be
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An isolation transformer has primary to secondady turns ratio of
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In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of
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The maximum flux produced in the core of a transformer is ______
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We can find _______of the transformer with open circuit test.
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The mutual flux in a transformer remains constant at all loads because ______
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The dielectric strength of transformer oil is expected to be
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A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____.
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No-load on a transformer is carried out to determine
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Losses which occur in rotating electric machines and do not occur in trans formers are
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