Transformers The primary and secondary of a transformer are ______ coupled. Electrically Magnetically Electrically and magnetically None of the listed here Electrically Magnetically Electrically and magnetically None of the listed here 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 15 A more than 15 A less than 15 A None of these 15 A more than 15 A less than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is increased Remians unchanged Is decreased None of the listed here Is increased Remians unchanged Is decreased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 25 per cent 100 per cent 98 per cent 50 per cent 25 per cent 100 per cent 98 per cent 50 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 5 A 20 A 15 A 10 A 5 A 20 A 15 A 10 A ANSWER DOWNLOAD EXAMIANS APP
Transformers Burden of a current transformer is usually expressed in Kilowatt Amperes Volts Volt amperes Kilowatt Amperes Volts Volt amperes ANSWER DOWNLOAD EXAMIANS APP
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