Transformers - Study Mode
[#141] The path of a magnetic flux in a transformer should have
Correct Answer
(D) low reluctance
[#142] The path of the magnetic flux in transformer should have
Correct Answer
(B) low reactance
[#143] The permissible flux density in case of cold rolled grain oriented steel is around
Correct Answer
(A) 1.7 Wb/m 2
[#144] No-load current of a transformer has
Correct Answer
(D) has small magnitude and low power factor
[#145] In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of
Correct Answer
(A) less than 15 A