Transformers In a transformer the energy is conveyed from primary to secondary by the flux through air None of these through cooling coil by the flux through air None of these through cooling coil ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 5.5 0.18 18 0.018 5.5 0.18 18 0.018 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Horn gaps Breather Thermal overload relays Conservator Horn gaps Breather Thermal overload relays Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Air is not a good magnetic insulator Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its Cu loss at no load None of the listed here Full load cu loss Iron loss Cu loss at no load None of the listed here Full load cu loss Iron loss ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 0.4 5 0.2 25 0.4 5 0.2 25 ANSWER DOWNLOAD EXAMIANS APP
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