Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is four times the primary current one-fourth the primary current equal to the primary current one-fourth the primary current and equal to the primary current four times the primary current one-fourth the primary current equal to the primary current one-fourth the primary current and equal to the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be Ns (l-s)Ns s.N. (Ns-l)s Ns (l-s)Ns s.N. (Ns-l)s ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Power transformer Potential transformer Current transformer Auto transformer Power transformer Potential transformer Current transformer Auto transformer 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
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 20 A 5 A 10 A 15 A 20 A 5 A 10 A 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 100 W None of the listed here 200 W 400 W 100 W None of the listed here 200 W 400 W ANSWER DOWNLOAD EXAMIANS APP
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