magnetic field
nounDefinition of magnetic field
: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected
Examples of magnetic field in a Sentence
Recent Examples on the Web
The fluid motion, or convection, of the iron creates an electric current, which generates a magnetic field. — Emily Toomey, Smithsonian, "Earth’s Magnetic Field Could Take Longer to Flip Than Previously Thought," 8 Aug. 2019 Tools like magnetometers, which look for changes in magnetic fields that might reveal the presence of iron and other metals, are essential. — Kiona N. Smith, Ars Technica, "Unexploded World War II bombs may still be buried at Pompeii," 8 July 2019 For a Kibble balance, however, one of these pans is essentially replaced with a coil in a magnetic field. — Robert Rathe, National Geographic, "The kilogram is forever changed. Here's why that matters.," 20 May 2019 Investigators caught a glimpse of the spacecraft's own magnetic field during the deployment; the strength of the field dropped off as the boom extended away from the spacecraft. — Elizabeth Howell, Space.com, "Here Comes the Sun! Parker Solar Probe Instruments See 'First Light'," 25 Sep. 2018 The birds are born with that knowledge, maybe tied to the Earth’s magnetic field and landforms. — Anchorage Daily News, "Alaska’s northern wheatears are about to embark on a remarkable journey," 10 Aug. 2019 As the rocks cool, the magnetic minerals act like tiny compass needles, encoding the orientation of Earth’s magnetic field, Caplan-Auerbach explains. — National Geographic, "Six underwater volcanoes found hiding in plain sight," 2 Aug. 2019 Much modern equipment that requires strong magnetic fields, which are induced by electrical currents, relies on superconducting technology. — Martin Weil, BostonGlobe.com, "John Robert Schrieffer, Nobel laureate who studied superconductivity, dead at 88," 29 July 2019 The last remaining factor that the researchers mention is the Earth’s magnetic field. — Chris Lee, Ars Technica, "NASA’s EM-drive is a magnetic WTF-thruster," 21 May 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnetic field.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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