Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 400 W 200 W None of the listed here 100 W 400 W 200 W None of the listed here 100 W 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 1.3 Ω 13 Ω 7.8 Ω 78 Ω 1.3 Ω 13 Ω 7.8 Ω 78 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 7.3 V 880 V 73 V 88 V 7.3 V 880 V 73 V 88 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is less than one None of these great than one approximately equal to one less than one None of these great than one approximately equal to one ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Magnetostriction Zoom Hum Boo Magnetostriction Zoom Hum Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Copper losses Iron losses Friction losses Total losses Copper losses Iron losses Friction losses Total losses ANSWER DOWNLOAD EXAMIANS APP
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