Transformers When the secondary of a transformer is short circuited, the primary inductance _______ None of the listed here Remians unchanged Is decreased Is increased None of the listed here Remians unchanged Is decreased Is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers Noise level test in a transformer is a type test routine test special test None of these type test routine test special test None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. Less than More than None of the listed here The same as Less than More than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary terminal voltage to primary applied voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Power Time period Frequency Voltage Power Time period Frequency Voltage 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 ? 250 Ω 62500 Ω 25 Ω 6250 Ω 250 Ω 62500 Ω 25 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
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