Is a flux density of 227.6 T realistic for a 5cm bar magnet?

AI Thread Summary
A flux density of 227.6 T for a 5cm bar magnet is considered unrealistic, as typical values for small magnets range from 0.25 T to around 1.25 T for rare Earth magnets. The original figure likely resulted from calculation errors, as confirmed by the discussion participants. After reviewing the calculations, the user revised their value to approximately 0.22 T, which aligns more closely with expected ranges. The conversation emphasizes the importance of accurate calculations in determining magnetic flux density. Overall, the discussion highlights the significant difference between experimental results and realistic expectations for magnet strength.
Cici2017
Flux density of a magnet is about how many T?

In an experiment, I obtained the number 227.6 T.

Is this a sensible value for a small (5cm long) bar magnet? Thank you~
 
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Tesla and Farad are the two units where if you have 1 of it, you have a LOT.
 
Cici2017 said:
In an experiment, I obtained the number 227.6 T.
how did you get that figure
show some working so that some one may be able to help you understand where you went wrong

so you should have gleaned from @CWatters link that strength of one of those smaller rare Earth magnets is around 1.25T

Therefore if your magnet is a typical older style iron bar magnet, it may be around 0.25 to 0.5 T at the mostDae
 
Yes, thank you everyone. I found that I did something wrong in my calculations. Now I have a value around 0.22 T.
 

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