Transformers The short circuit test helps us to find None of the listed here Iron loss at no load Cu loss at any desire load Cu loss at no load None of the listed here Iron loss at no load Cu loss at any desire load Cu loss at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current, voltage, frequency and power factor load current, voltage and frequency load current and voltage load current load current, voltage, frequency and power factor load current, voltage and frequency load current and voltage load current ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of less than 15 A 15 A more than 15 A None of these less than 15 A 15 A more than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Provide tight magnetic coupling None of the listed here Increase the wight Reduce core loss Provide tight magnetic coupling None of the listed here Increase the wight Reduce core loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has high magnitude and high power factor has small magnitude and low power factor has small magnitude and high power factor has high magnitude and low power factor has high magnitude and high power factor has small magnitude and low power factor has small magnitude and high power factor has high magnitude and low power factor ANSWER DOWNLOAD EXAMIANS APP
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