Transformers In a transformer the energy is conveyed from primary to secondary through air None of these through cooling coil by the flux through air None of these through cooling coil by the flux ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of None of these 15 A more than 15 A less than 15 A None of these 15 A more than 15 A less than 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 90 V 9 V 0.9 V 900 V 90 V 9 V 0.9 V 900 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum Boo 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 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? 8 kVA 4 kVA 0.25 kVA 16 kVA 8 kVA 4 kVA 0.25 kVA 16 kVA ANSWER DOWNLOAD EXAMIANS APP
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