Three magnets A, B and C were dipped one by one in a heap of iron filing. Fig. 13.3 shows the amount of the iron filing sticking to them.

The strength of these magnets will be

As we can see from the given figure, A attracts more iron fillings followed by magnet B. Magnet C hardly attracts any iron filings. From the level of attraction of iron fillings we can definitely say that strength of A is more than B & strength of B is more than C.