Transformers Leakage flux in a transformer occurs because Transformer is not an efficient device Applied voltage is sinusoidal Air is not a good magnetic insulator Iron core has high permeability Transformer is not an efficient device Applied voltage is sinusoidal Air is not a good magnetic insulator Iron core has high permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 4 μH 8 μH 2 mH 2 μH 4 μH 8 μH 2 mH 2 μH ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here 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? 4 0.4 9.6 0.96 4 0.4 9.6 0.96 ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Current Frequency Power Voltage Current Frequency Power Voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. Less than None of the listed here More than The same as Less than None of the listed here More than The same as ANSWER DOWNLOAD EXAMIANS APP
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