Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Voltage transformer Current transformer Auto transformer Power transformer Voltage transformer Current transformer Auto transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Eddy current loss Copper loss Iron losses Leakage reactance Eddy current loss Copper loss Iron losses Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Equal to None of the listed here Less than Higher than Equal to None of the listed here Less than Higher than ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its temperature rise dielectric strength of oil copper loss voltage ratio temperature rise dielectric strength of oil copper loss voltage ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss efficiency copper loss magnetising current and loss magnetising current core loss efficiency copper loss magnetising current and loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
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