Definition of line of force in US English:

line of force


  • An imaginary line which represents the strength and direction of a magnetic, gravitational, or electric field at any point.

    • ‘W Thomson was the first who tried to treat mathematically Faraday's conception of lines of force.’
    • ‘As it is, auroras on Earth follow magnetic lines of force that converge at the north and south magnetic poles.’
    • ‘Planets then circle the Sun, not because they are held by invisible lines of force, as Newton had us think, but because they are simply caught in the natural hollow carved out by the star.’
    • ‘The magnetic fields are a bit like rubber bands, consisting of continuous loops of lines of force that have both tension and pressure.’
    • ‘So, scientists agreed that to keep everyone talking about the same thing, that magnetic lines of force should travel from North to South.’
    • ‘Io's orbit cuts across Jupiter's powerful magnetic lines of force, turning Io into a giant electricity generator.’
    • ‘One of Maxwell's most important achievements was his extension and mathematical formulation of Michael Faraday's theories of electricity and magnetic lines of force.’
    • ‘Faraday, however, introduced the notion of a field - an invisible web of lines of force radiating from an electric charge or a magnet.’
    • ‘The gauss or flux density is the line of force per unit area of the pole.’