Question

why is it so that opposite pole attract and same poles of the magnet repel

Answer 1

A Magnet attracts or repels otherMagnets, depending on their mutual orientation of North and South Poles. When placing likePoles of two Magnets together, theMagnets repel each other, Figure 2. However, if opposite Poles are placed together, they attract each other,

Answer 2

North Pole - North pole repels each other
And South pole to North pole attract each other in a magnet