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 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. 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 62500 Ω 250 Ω 6250 Ω 25 Ω 62500 Ω 250 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. More than Less than None of the listed here The same as More than Less than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 16 kVA 4 kVA 0.25 kVA 8 kVA 16 kVA 4 kVA 0.25 kVA 8 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at full load at 50% full load at 80% full load at no load at full load at 50% full load at 80% full load at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Secondary winding Primary winding Low voltage winding High voltage winding Secondary winding Primary winding Low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
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