Hi,
I have carried out an experiment to investigate the force of attraction between two bar magnets by changing the seperation between the two magnets. Both bar magnets are about 4cm long and I have recorded results between 1cm and 10cm's.
A lot of the research I have carried out appears to say that the force between two magnets cannot be calculated at a close distance and that for large distances, is this true? It also says I should use the force of attraction from the two further poles and the repulsion force from the like poles in my general formula. However, as distance increases, wouldn't that make those negligible as the force is inversely exponential as distance increases.
Could you please clarify those problems and also tell me the exact relationship between force and distance is in this case?
Kind regards,
NMavro
I have carried out an experiment to investigate the force of attraction between two bar magnets by changing the seperation between the two magnets. Both bar magnets are about 4cm long and I have recorded results between 1cm and 10cm's.
A lot of the research I have carried out appears to say that the force between two magnets cannot be calculated at a close distance and that for large distances, is this true? It also says I should use the force of attraction from the two further poles and the repulsion force from the like poles in my general formula. However, as distance increases, wouldn't that make those negligible as the force is inversely exponential as distance increases.
Could you please clarify those problems and also tell me the exact relationship between force and distance is in this case?
Kind regards,
NMavro