A 100V/10V, 50VA transformer is converted to 100V/110V auto transformer, the rating of the autotransformer will be
550 VA
500
VA
110 VA
100
VA
550 VA
An
autotransformer is a type of transformer which have only one winding, common to
both primary and secondary respectively.
Here the secondary current, in initial condition is,
Thus,
after modification, the rating of that auto transformer will be calculated as,
VA
Hence,
the correct option is (A).
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