Transformers A transformer is an efficient device because it _______ Uses electric coupling Uses inductive coupling Uses capacitive coupling Is a static device Uses electric coupling Uses inductive coupling Uses capacitive coupling Is a static device ANSWER DOWNLOAD EXAMIANS APP
Transformers The permissible flux density in case of cold rolled grain oriented steel is around 3.7 Wb/m² 2.7 Wb/m² 4.7 Wb/m² 1.7 Wb/m² 3.7 Wb/m² 2.7 Wb/m² 4.7 Wb/m² 1.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Voltage Frequency Power Time period Voltage Frequency Power Time period ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Copper Hysteresis Friction Eddy current Copper Hysteresis Friction Eddy current ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has reduced magnetic leakage negligibly hysteresis losses None of these high eddy current losses reduced magnetic leakage negligibly hysteresis losses None of these high eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Cu loss at no load Cu loss at any desire load Iron loss at no load None of the listed here Cu loss at no load Cu loss at any desire load Iron loss at no load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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