An isolating transformer has ______ ratio.
BPSC Past Papers / All — Multiple-choice practice
- A. None of these
- B. 2:2
- C. 1:1
- D. 1:2
Correct answer
1:1
Explanation
Explanation An isolating transformer provides electrical isolation between primary and secondary without changing voltage magnitude. Its turns ratio is 1:1 , ensuring the same voltage level while isolating circuits for safety.
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