how we analyse the magnetic strength using some meters or instruments. explain?then we doing one project, there i mating two magnets in repulsive position(ie N-N or S-S) under some force. but magnets are constrained not to move from its linerepulsive force. what will happen? when the magnetic field strength is equal to applied load. then what will happen to magnet material? it may break or not.?or explain me when will magnet may break due to its own magnetic power
Magetic force is weak relative to the forces that hold material together and because magnetism is a field, it is applied over all, not as a point force. Therefore it is very unlikely that a magnet will be torn apart by its own forces. Electro magnets can be made much stronger than permanent magnets, but failure there is not usually due to damage to the magnet but overheating and pushing apart of the individual wires in the coil due to the current in them.
Read about motor induction and EMF It's fascinating.
