Four identical iron bars were dipped in a heap of iron filings one by one. Fig. 13.5 shows the amount of iron filings sticking to each of them.
(a) Which of the iron bar is likely to be the strongest magnet?
(b) Which of the iron bars is not a magnet? Justify your answer.
(a) Iron bar (a) is likely to be the strongest magnet.
(b) Iron bar (b) is not a magnet since none of the iron filings sticks to the magnet.
(a) Iron bar (a) is likely to be the strongest magnet.
(b) Iron bar (b) is not a magnet since none of the iron filings sticks to the magnet.