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Ronan Asked :

25-09-2021 Electrical Machines

Q. A transformer has comparitively much higher efficiency than a similar induction machine due to _________

A. small air gaps
B. no moving parts
C. strong coupling
D. All of the above


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Dapzoi Verified
Commented on 2021-09-25 12:08:28 (IST)
Answer: D

Explanation: Transformer does not has any moving components so losses are anyway reduced and also the coupling is very strong between two sides.