field strength

American  

noun

Physics.

1. the vector sum of all forces exerted by a field on a unit mass, unit charge, unit magnetic pole, etc., at a given point within the field.

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field strength British  

noun

1. radio television the intensity of an electromagnetic wave at any point in the area covered by a radio or television transmitter

2. physics the intensity of an electric or magnetic field See intensity

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Etymology

Origin of field strength

First recorded in 1895–1900

Example Sentences

See Examples For:

field strength

Such maps show deviations from the average field strength over the surface of the Earth.

From The Wall Street Journal ● Nov. 20, 2025

Understanding how Earth's magnetic field strength has varied over time is also key for determining when Earth's inner, solid core began to form.

From Science Daily ● Apr. 24, 2024

Because of the different gravitational field strength on the Moon, time moves quicker there relative to Earth - 58.7 microseconds every day.

From BBC ● Apr. 3, 2024

Reduce the field strength by a factor of 25 and the polarization falls with it.

From Science Magazine ● Feb. 22, 2023

But without the proper magnetic field strength, it exploded outward instead.

From "Darius the Great Is Not Okay" by Adib Khorram