Question

Consider two transformers X and Y having identical ratings, but have flux densities of 1.5T and 2T respectively. The weight of the transformer B per KVA will be _________

(a) more than that of A

(b) lesser than that of A

(c) equal to that of A

(d) can not be said from the given data

The question was posed to me in an online interview.

My question comes from Transformer Construction in division Transformers of Electrical Machines

Answer 1

Right option is (b) lesser than that of A

The best I can explain: Flux density = flux/Area.

             Hence A has more area than B and so weight of B will be less than that of A.