the experiment question- magnets n current (1 Viewer)

[...]

Originally posted by Ragerunner
Can you just say use electromagnets?

I made up the experiment on the spot cuz our school only did like 2 of the 15 pracs -_-

i did that...

but i did it on eddy current...

 

[ND]

Originally posted by ...
i did that...

but i did it on eddy current...

How did you measure the eddy currents?

 

[...]

i did it like:

swing a metal plate between 2 electromagnet...

measure the time for it to stop with differnt B(by changing the V)

 

[Inhuman]

yeh but the Q was about the effect a larger magnetic field has on CURRENT, so I would assume you need a way to measure current somehow -> ammeter or galvanometer

 

[tegs]

I talked about dropping magnets of same weight but different strength through a solenoid from the same distance, so they would have the same speed through the solenoid at the same points. Then recording the current on the ammeter.

 

[Chand]

Originally posted by Jimmoi
If you are cheap like our school stick a few magnets together to make a stronger magnet. And use a galvanometer.

thats us

 

[Dash]

Haha, thats what I said as well

 

[pigs_can_fly]

i totally fucked this question. i thought they were going on about the motor effect (for some fuked up reason ), cos i thought 'generated current' was from a TRU, as opposed to 'induced current' from relative movement between coil and magnetic field. oh wells hope they'll give me some marks for experimental procedure or some crap.