Question

how will you judge as which of the two given similar magnets is stronger, without using a third magnet ?​

Answer 1

Answer:

If we scatter iron fillings around the magnets, then these fillings will arrange themselves around the magnet to form the field lines. The closer/denser the field lines formed by the iron fillings, the stronger will be the magnet.

Answer 2

$\huge\mathfrak{Answer}$

⭐Resistivity is a measure of the resistance of a given size of a specific material to electrical conduction.

⭐Materials that conduct electrical current easily are called conductors and have a low resistivity. Those that do not conduct electricity easily are called insulators and these materials have a high resistivity.