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Electrical Devices and Circuit Symbols App's MCQs & e-Book PDF Download - 86

MCQ 86:

Which one is correct about Battery?

  1. it is 99.5% pure copper
  2. it is collection of cells
  3. it is pure lead
  4. it is pure zinc

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Electrical Devices and Circuit Symbols Textbook App: Free Download (iOS & Android)

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Electrical Devices and Circuit Symbols App (Android & iOS)

Electrical Devices and Circuit Symbols App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

College Chemistry App (Android & iOS)

College Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (iOS & Android)