'Magnetometer' is used to measure: ______________?

  • A. Air Pressure on Ships
  • B. Electromagnetic Force in Space Devices
  • C. Changes in the Earth's Magnetic Field
  • D. Changes in Oceanic Current

Explanation

A magnetometer detects the strength and direction of magnetic fields, including changes in Earth’s magnetic field. It is not primarily an instrument for measuring air pressure or ocean currents.

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