magnetic line of force

ریشه

The word 'magnetic' comes from the Latin word 'magnēticus', meaning 'pertaining to a magnet'. 'Line' comes from the Old English word 'līne', meaning 'rope' or 'cord'. 'Force' comes from the Latin word 'fortis', meaning 'strong'.

مثال

• The magnetic line of force around a bar magnet forms a closed loop.
• The density of magnetic lines of force indicates the strength of the magnetic field.
• The direction of the magnetic line of force is from the north pole to the south pole.