When a number of identical small magnets are arranged in a line, the strength of the resultant magnet
ia largest when they are arranged end to end
is greatest when they are arrangedparallel with like poles adjacent to each other
depends only on the number of magnets provided they arev parallel
is greater when the magnets are arranged on a wooden surface than on a metaln surface
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the correct option is B as the domain theory of magnetism explains a magnetic material as having several parallel magnets arranged with like poles adjacent to each other ,this is said to be the reason why it has a resultant strong magnetism
on the other hand non magnetic materials is explained qs having several small magnets arranged end to end with unlike poles adjacent to each other
When magnets are placed in a line with unlike poles touching (North to South), their magnetic fields reinforce each other. The group effectively acts as one long, much stronger magnet. The total magnetic flux is maximized at the ends. A is actually CORRECT.
