Transformers No-load on a transformer is carried out to determine copper loss efficiency of the transformer magnetising current and loss magnetising current copper loss efficiency of the transformer magnetising current and loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine magnetising current and loss efficiency magnetising current core loss copper loss magnetising current and loss efficiency magnetising current core loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Current transformer Voltage transformer Auto transformer Power transformer Current transformer Voltage transformer Auto transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 25 Ω 6250 Ω 250 Ω 62500 Ω 25 Ω 6250 Ω 250 Ω 62500 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Air motor Shunt motor Synchronous motor Induction motor Air motor Shunt motor Synchronous motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability Low hysteresis loss Mechanical strength High thermal conductivity High permeability Low hysteresis loss Mechanical strength High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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