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#4822 Bangla Language & Literature তড়িৎশক্তি Level 27620

তড়িৎ শক্তি শব্দ শক্তিতে রূপান্তরিত হয় কোন যন্ত্রের মাধ্যমে?

  1. A মাইক্রোফোন
  2. B এ্যামপ্লিফায়ার
  3. C জেনারেটর
  4. D লাউড স্পীকার
Answer: D - লাউড স্পীকার

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