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Everyday Science Medium FPSC PPSC NTS Uploaded: 25 Jun 2026

Which everyday device changes the voltage level of alternating current for transmission or use?

  • A Generator
  • B Transformer
  • C Battery
  • D Inverter
Correct Answer: Option B — Transformer
Explanation:
A transformer changes the voltage level of alternating current using electromagnetic induction between coils enabling efficient electricity transmission over long distances and safe household use.
Submitted by: PaperMCQs
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