MultipleChoice (1 Viewer)

[armageddonmuscle55]

I think its A but some other ppl says its B

If u cant see the images..let me know I will upload it again.

 

[seventhroot]

pls upload again

 

[armageddonmuscle55]

Here it is

 

[seventhroot]

this same question was asked on BoS a few days ago; I can't seem to find the thread.

I think it is B.

C and D are blatantly wrong and A has some correct information but the other bits are misleading.

 

[armageddonmuscle55]

any1 else

 

[seventhroot]

any1 else

k den

 

[emilios]

It's B. Yes, it's true that eddy currents are produced in the tube both above and below the magnet, but the only relevant eddy currents are the ones produced in the tube below the magnet since we're talking about it being SLOWED DOWN (who cares what's going on above the magnet?)

 

[armageddonmuscle55]

It's B. Yes, it's true that eddy currents are produced in the tube both above and below the magnet, but the only relevant eddy currents are the ones produced in the tube below the magnet since we're talking about it being SLOWED DOWN (who cares what's going on above the magnet?)

Ahh okay, thx man !!

 

[Fizzy_Cyst]

To me, none of the options are correct :\

A is incorrect as it just states that the eddy currents are induced above/below the magnet (In like fat air or sumn?) -- not in the Al tube

B is incorrect as it implies the force opposing the magnets motion is due to the eddy current -- but it is due to the magnetic field CREATED by the eddy current.

Mix A and B together and you have a perfect answer!

I would imagine that the answers would say B for this question -- but it is still not 100% correct.

 

[armageddonmuscle55]

But in B , it didnt mentioned anything about the induced magnetic field.

 

[anomalousdecay]

But in B , it didnt mentioned anything about the induced magnetic field.

They are all wrong though. You just have to go for the most correct one (which seems like either a or b).