Read the sentences in Ukrainian and choose the appropriate translation
into English.
Відомо, що робота перших
амперметрів залежала від магнітного поля Землі.

  • It is known that the
    operation of ammeters depends on the Earth's magnetic field .
  • The operation of early ammeters is known to depend on the
    Earth's magnetic field .
  • The operation of early ammeters is known to have depended on the
    Earth's magnetic field .
  • They know the
    operation of early ammeters to have depended on the magnetic field .
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