Transformers Harmonics in transformer result in increased core losses increased I2R losses All of the listed here magnetic interference with communication circuits increased core losses increased I2R losses All of the listed here magnetic interference with communication circuits ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 78 Ω 7.8 Ω 1.3 Ω 13 Ω 78 Ω 7.8 Ω 1.3 Ω 13 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Losses are small Iron core is used Leakage flux is small Applied voltage and frequency are constant Losses are small Iron core is used Leakage flux is small Applied voltage and frequency are constant ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its temperature rise copper loss voltage ratio dielectric strength of oil temperature rise copper loss voltage ratio dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers Burden of a current transformer is usually expressed in Volt amperes Amperes Kilowatt Volts Volt amperes Amperes Kilowatt Volts ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 9.6 0.4 0.96 4 9.6 0.4 0.96 4 ANSWER DOWNLOAD EXAMIANS APP
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