Transformers A no-load test is performed on a transformer to determine magnetising current core loss copper loss magnetising current and loss efficiency magnetising current core loss copper loss magnetising current and loss efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 9.6 0.96 4 0.4 9.6 0.96 4 0.4 ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Transformer is not an efficient device Air is not a good magnetic insulator Iron core has high permeability Applied voltage is sinusoidal Transformer is not an efficient device Air is not a good magnetic insulator Iron core has high permeability Applied voltage is sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ Lesser average length per turn None of the listed here Shorter magnetic path Much longer magnetic path Lesser average length per turn None of the listed here Shorter magnetic path Much longer magnetic path ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses electric coupling Uses capacitive coupling A static device Uses inductive coupling Uses electric coupling Uses capacitive coupling A static device Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 6 V 0 V 48 V 0.75 V 6 V 0 V 48 V ANSWER DOWNLOAD EXAMIANS APP
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