Algebar and Elgebar are seen in poetry for this star, but it universally is known as Rigel, from Rijl Jauzah al Yusra, the Left Leg of the Jauzah (Jauzah was the Arabic title for Orion), by which extended title the Arabians knew it after the word Jauzah had become a personal title; the modern name first appearing in the Alfonsine Tables of 1521.
MAGNET: A material that has the property, either natural or induced, of attracting iron or steel. MAGNETIC FIELD: The space around a magnet in which the magnetic force can be detected. MAGNETIC FLUX: The total magnetic induction across or through a specified area. MAGNETIC INDUCTION, B: The production of magnetic properties in a magnetizable substance when placed in a magnetic field.
1) In the case of a bar magnet, outside it, the magnetic lines of forces start from North Pole and end on South Pole. But inside it, the lines of force start from south and end on North Pole. According to definition of direction of lines of force, it is the direction in which a unit north pole would move when placed in a magnetic field. This is true outside the bar magnet but not so inside it.