Question

When a horse shoe magnet is dipped in iron fillings, no iron fillings get attracted to the bend portion ... why

Answer 1

Because the poles of the magnet are in the ends of it . And the magnetic power is highest near the poles.

Hope it helps....

Answer 2

In a horse shoe magnet only the 2 end points are +ve and -ve charged. But in between there is no charge. So no iron filings are attracted.