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Higher Study | Electrical Machines | Transformer

Which of the following is the main advantage of an auto-transformer over a two-winding transformer?
What is the purpose of providing an iron core in a transformer?
Which winding of the transformer has less cross-sectional area?
Why transformers connected in parallel should have same voltage ratio?
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are
Which of the following statements is incorrect ?
A no-load test is performed on a transformer to determine
In T-T connection, the percentage tapping of main transformer and teaser transformer respectively are
While performing back to back test, the amount of power consumed is equal to 
An ordinary transformer works on:
Transformer on “No–Load” means
The value of flux involved in the emf equation of transformer is
The type of transformer used in a stabilizer is
Distribution transformers have the rating of
Short circuit test on transformer is also known as
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