Transformers A step up transformer increases Power Current Frequency Voltage Power Current Frequency Voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current and voltage load current, voltage, frequency and power factor load current, voltage and frequency load current load current and voltage load current, voltage, frequency and power factor load current, voltage and frequency load current ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 50% 65% 95% 80% 50% 65% 95% ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine magnetising current and loss core loss copper loss magnetising current efficiency magnetising current and loss core loss copper loss magnetising current efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 2 V 180 V 20 V 18 V 2 V 180 V 20 V 18 V 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? 88 V 73 V 7.3 V 880 V 88 V 73 V 7.3 V 880 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS