Transformers The all day efficiency of a transformer is also called its Energy efficiency Power efficiency None of the listed here Current efficiency Energy efficiency Power efficiency None of the listed here Current efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because it _______ Is a static device Uses electric coupling Uses capacitive coupling Uses inductive coupling Is a static device Uses electric coupling Uses capacitive coupling Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around Zero load 50% load 90% load 25% load Zero load 50% load 90% load 25% load ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Leakage flux is small Losses are small Iron core is used Applied voltage and frequency are constant Leakage flux is small Losses are small Iron core is used Applied voltage and frequency are constant ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Cu loss at no load Iron loss at no load Cu loss at any desire load None of the listed here Cu loss at no load Iron loss at no load Cu loss at any desire load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS