Story: Magnetic field

A magnetometer

Magnetometers are scientific instruments that measure the strength of magnetic fields.

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GNS Science

by Tony Hurst

Permission of GNS Science must be obtained before any use of this image.

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How to cite this page

Tony Hurst, Magnetic field – The magnetic field and its direction, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/9216/a-magnetometer (accessed 4 June 2026).

Story by Tony Hurst, published 2 March 2009.