Magnetic inductance is the property you're thinking of. The moving magnet creates a slight electric current, which in turn creates a slight, opposing magnetic field slowing the free fall of the magnet.
Silver is weakly paramagnetic and strongly diamagnetic. The technicalities are not really that important. Once you have practiced sliding a strong magnet over a known silver coin a few times, you will develop a good feel for how it should interact. You just have to look for that same behaviour when testing.
You are correct. The magnet test is a good place to start but I always weigh the bars and test them on the Sigma also. They should be able to pass all 3 tests if it's genuine.
@@MidwestGoldSilver I’d seen it done with copper; makes sense that with silver, the best electrical conductor in the universe, it would work even better!
Yes copper will pass the magnet test. That's why I did a follow up video showing some other things to look for but the magnet test is a quick and easy way to check on the go... most of the fakes I have come across do not pass the magnet test but some do. I check with a magnet, weigh them and put them on the Sigma. Haven't had a fake pass all 3 tests yet...
@devvynp2195 that's most likely going to be plated with .999 fine silver. I'd take it back to wherever you purchased it and see if they would exchange it. Thanks for watching!
You have to be really careful, and have your local coin shop use a PMV tester (unless you have one). German silver will easily pass the magnet test, AND the ice cube test, but it is not even 5 or 10% silver.
Is it me or did tht 100 ounce look like they just smash molded 2 50 ounces that line in the middle shouldn't it have been missing like no line it looks like 2 bars supposed to be whole right no break line
All of the chinese fake 1 OZ bars will say 999 fine silver and since they are copper inside will influence a magnet the same as silver. Get an inexpensive ultrasonic tester and be safe.
I use a Sigma Metalytics Precious Metal Verifier Pro among other things to verify in the shop. The magnet test is just a quick and easy method to help eliminate fakes when out at yard sales, etc. It's not 100% but you might be surprised how many fakes a simple magnet will catch!
Disagree with you just because it doesn’t say 999 doesn’t mean anything because fake silver could have that on it as well. I don’t believe Eagles say 999 fine silver on them do they
Buy whatever you like, I'm just recommending that when buying bullion it should be stamped with the purity. If it's a collectable coin these won't usually be marked with the purity, but bars and rounds should always be marked. If it's not marked you're taking a big chance and it's not going to be as easy to re-sell even if it is silver. American silver eagles all say 1oz Fine silver on the back...
Actually it's 💯 legit! If the magnet falls right off... is a fake. If the magnet sticks... it's fake. If it slides down slow it's good to go on to the next test. The magnet didnt actually stick, it just kinda got snagged on some of the lettering and design elements on the bar. I'll be doing another video to show everyone how I verify bars when they come into the shop. Thanks for the comment and thanks for watching! Stay tuned...
Thanks. This is great info. I would like to see more.
More to come!
Magnetic inductance is the property you're thinking of. The moving magnet creates a slight electric current, which in turn creates a slight, opposing magnetic field slowing the free fall of the magnet.
YES! That's the term, thank you!
Silver is weakly paramagnetic and strongly diamagnetic. The technicalities are not really that important. Once you have practiced sliding a strong magnet over a known silver coin a few times, you will develop a good feel for how it should interact. You just have to look for that same behaviour when testing.
Copper has the same effect with the magnet.
You are correct. The magnet test is a good place to start but I always weigh the bars and test them on the Sigma also. They should be able to pass all 3 tests if it's genuine.
Very very good!
Glad you enjoyed it. Thanks for watching!
yes! testing silver is super interesting☺ I like the coin video too
Glad you enjoyed the videos. Thanks for watching! Stay tuned...
Great video. Great info. 👍
Glad you enjoyed it. Thanks for watching!
That is sooo kewl! You know I have to try it
It's a fun little experiment!
@@MidwestGoldSilver I’d seen it done with copper; makes sense that with silver, the best electrical conductor in the universe, it would work even better!
Helping newcomers with their education 👍
Thanks for watching!
great video!
Thanks for watching!
Be aware that copper has the same effect with magnets, ie; it could be copper , plated with a silvery substance.....
please show other tests. Thank you
Sounds fun! I'll do another video and show everyone what I do as a coin dealer to verify bars like this. Thanks for the suggestion!
I prefer 1oz rounds. Most Buffaloes are same size and can be tested with ping test.
I like the buffalo's too!
The property is called diamagnetic, and it's not attracted, it's repelled by a magnetic field.
Thanks for the clarification!
Good testing
Thanks for watching
Hey! Yes, more how to test coins and bars!
I've got another video uploading right now showing how I test silver bars at the shop. Thanks for watching!
The problem is most fakes are copper or an alloy of, and copper also shares this property
Yes copper will pass the magnet test. That's why I did a follow up video showing some other things to look for but the magnet test is a quick and easy way to check on the go... most of the fakes I have come across do not pass the magnet test but some do. I check with a magnet, weigh them and put them on the Sigma. Haven't had a fake pass all 3 tests yet...
What kind of magnet is that
@happymood888 Tha ks for watching! I use a Neodymium magnet for most of what I do.
@MidwestGoldSilver thanks for the knowledge brother I will keep watching and keep learning
Pretty sure something is wrong with your 10oz bar lol it kind of slid fast
I purchased a stack of 1oz silver bars and recently noticed one said .999 fine clad is that a problem thanks in advance.
@devvynp2195 that's most likely going to be plated with .999 fine silver. I'd take it back to wherever you purchased it and see if they would exchange it. Thanks for watching!
@@MidwestGoldSilver thanks for the fast response
This will not work on a silver plated copper bar. The magnet will move exactly the same as on solid silver.
Does this work with platinum and/or gold
As far as I know, it only works with verifying silver.
You have to be really careful, and have your local coin shop use a PMV tester (unless you have one). German silver will easily pass the magnet test, AND the ice cube test, but it is not even 5 or 10% silver.
I Sigma test everything but the magnet is a good place to start if you don't have a PMV and need to make a quick decision. Thanks for watching!
Is it me or did tht 100 ounce look like they just smash molded 2 50 ounces that line in the middle shouldn't it have been missing like no line it looks like 2 bars supposed to be whole right no break line
Interesting observation. Thanks for watching!
@@MidwestGoldSilver I have seen 3 real 100 ounce bars and they didn't have that split line Mayne diff maker looks off tho
Copper will resist also..
Use an ice cube. It will melt pretty quickly.
Might get a little messy but yes, that works too!
All of the chinese fake 1 OZ bars will say 999 fine silver and since they are copper inside will influence a magnet the same as silver. Get an inexpensive ultrasonic tester and be safe.
I use a Sigma Metalytics Precious Metal Verifier Pro among other things to verify in the shop. The magnet test is just a quick and easy method to help eliminate fakes when out at yard sales, etc. It's not 100% but you might be surprised how many fakes a simple magnet will catch!
Disagree with you just because it doesn’t say 999 doesn’t mean anything because fake silver could have that on it as well. I don’t believe Eagles say 999 fine silver on them do they
Buy whatever you like, I'm just recommending that when buying bullion it should be stamped with the purity. If it's a collectable coin these won't usually be marked with the purity, but bars and rounds should always be marked. If it's not marked you're taking a big chance and it's not going to be as easy to re-sell even if it is silver. American silver eagles all say 1oz Fine silver on the back...
Feromagnetic
so ,,the 100 oz. bar is fake --?
Actually it's 💯 legit! If the magnet falls right off... is a fake. If the magnet sticks... it's fake. If it slides down slow it's good to go on to the next test. The magnet didnt actually stick, it just kinda got snagged on some of the lettering and design elements on the bar. I'll be doing another video to show everyone how I verify bars when they come into the shop. Thanks for the comment and thanks for watching! Stay tuned...
You wasted 7 min of a 9 min video to get to the point 😮
A nine minute video just to say to use a magnet! Come on man give us more ways
bro is just yapping