Transformers Material used for construction of transformer core is usually Wood Silicon steel Aluminium Copper Wood Silicon steel Aluminium Copper 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 Open circuit test on transformers is conducted to determine eddy current losses core losses copper losses hysteresis losses eddy current losses core losses copper losses hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Magnetising current is greatly increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased Magnetising current is greatly increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be fused switched open shorted fused switched open shorted ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 μH 8 μH 2 mH 4 μH 2 μH 8 μH 2 mH 4 μH ANSWER DOWNLOAD EXAMIANS APP
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