Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is increased Is decreased Remians unchanged None of the listed here Is increased Is decreased Remians unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 50 Hz 2kVA, 400 Hz 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 50 Hz 2kVA, 400 Hz ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density none of above will happen cool as there is no secondary current hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density none of above will happen cool as there is no secondary current ANSWER DOWNLOAD EXAMIANS APP
Transformers Material used for construction of transformer core is usually Wood Silicon steel Copper Aluminium Wood Silicon steel Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Does not work Has no losses and leakage reactance Has same number of primary and secondary turns None of the listed here Does not work Has no losses and leakage reactance Has same number of primary and secondary turns None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The permissible flux density in case of cold rolled grain oriented steel is around 1.7 Wb/m² 4.7 Wb/m² 3.7 Wb/m² 2.7 Wb/m² 1.7 Wb/m² 4.7 Wb/m² 3.7 Wb/m² 2.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
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