Transformers In an auto transformer, the primary and secondary are _____ coupled. Only magnetically None of the listed here Only electrically Magnetically as well as electrically Only magnetically None of the listed here Only electrically Magnetically as well as electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged Is increased None of the listed here Is decreased Remians unchanged Is increased None of the listed here Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Time period Power Voltage Frequency Time period Power Voltage Frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Hysteresis Friction Copper Eddy current Hysteresis Friction Copper Eddy current ANSWER DOWNLOAD EXAMIANS APP
Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 12 V 2,400 V 120 V 240 V 12 V 2,400 V 120 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 880 V 8,800 V 8.8 V 88 V 880 V 8,800 V 8.8 V 88 V ANSWER DOWNLOAD EXAMIANS APP
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