MCQ
The frequency of ac mains in India is
- A$30 c / s$ or $Hz$
- ✓$50 c / s$ or $Hz$
- C$60 c / s$ or $Hz$
- D$120 c / s$ or $Hz$
✓
Answer
Correct option: B.
$50 c / s$ or $Hz$
(b)
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