DGVCL Exam Paper (12-06-2016) Step-down transformer converts high voltage and low current into: None of these High voltage and low current How voltage and high current Low voltage and high current None of these High voltage and low current How voltage and high current Low voltage and high current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In step up votlage,Output votlage > Input votlageOutput current < Input currentIn step down transformerOutput votlage < Input votlageOutput current > Input current.Power and frequency remains almost constant in stepup or stepdown transformer.
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary By the flux Through cooling coil Through air None of these By the flux Through cooling coil Through air None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
DGVCL Exam Paper (12-06-2016) The following is not a Regulatory Commission: CSERC DGVCL GERC BERC CSERC DGVCL GERC BERC ANSWER EXPLANATION DOWNLOAD EXAMIANS APP DGVCL is distribution company.
DGVCL Exam Paper (12-06-2016) DGVCL is not distributing electricity in _____ district. Valsad Tapi Navsari Vadodara Valsad Tapi Navsari Vadodara ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The friction losses in Real Transformers are : 0 0.25 0.5 0.05 0 0.25 0.5 0.05 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP As there is no rotating part in transformer, there is no friction and windage loss
DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 120 Volts 60 Volts 30 Volts 480 Volts 120 Volts 60 Volts 30 Volts 480 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
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