সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
For which of the following purposes is a transformer used?
For which of the following purposes is a transformer used?
- ক. measurement of flow of electricity
- খ. conversion of low voltage into high voltage and vice versa
- গ. conversion of DC into AC
- ঘ. regulation of fluctuation of voltage
সঠিক উত্তরঃ conversion of low voltage into high voltage and vice versa
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Basic Information of Daily Science, Inventions and...