Transformers A transformer operates poorly at very low frequencies because _____ Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustments in secondary voltage Adjustment in primary voltage Adjustment in both primary and secondary None of the listed here Adjustments in secondary voltage Adjustment in primary voltage Adjustment in both primary and secondary None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ Low voltage winding None of the listed here Either high or low voltage winding High voltage winding Low voltage winding None of the listed here Either high or low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has All of the listed here Low hysteresis loss High silicon content High permeability All of the listed here Low hysteresis loss High silicon content High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Has no losses and leakage reactance Has same number of primary and secondary turns Does not work None of the listed here Has no losses and leakage reactance Has same number of primary and secondary turns Does not work None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is four times the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current equal to the primary current four times the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current equal to the primary current ANSWER DOWNLOAD EXAMIANS APP
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