Recent content by Chris W

the pendulum will experience the damping force due to the B field. I was wondering how to set up the equation for this problem. the effect of the damping force can be seen on this video. thank you Chris W

Hi guys. First off I would like to say thanks for the help that I got from all of you! you guys rock! as for the Eddy current problem... hmmmm I don't know why one is it.? is this problem that hard? hmmm wow ....(I didn't expect it!) or the explanation is bad? please let me know...

hmmmm... can you see the attachments? the FDB for the problem is drawn by hand. the class notes attachment is something that I think is needed to set up the problem I don't have to solve . just set up the equations please ... I need help here thanks Chris W

I hope you can see the attachments now you can see what I was trying to "draw" using the keyboard... lol

oh... I think the attachment are available now! just on time!

man... this won't work ... sorry I was trying to make a FDB using keyboard... all is massed up! let's wait! thanks

Fdb Thanks guys. Chris W Basically it looks like this: ------>pivot point | _______________________________________...

hmmm anyone ?? any hints? any ideas? please... and thanks you Chris W

I think my question is related to the notes that I have. Please see the attachment. Chris W

what I could conclude so far is that: when the pendulum makes that swing the area (A=w*h) of the bottom part of the pendulum is submerged in the B-field while swinging. this can be explressed as dA/dt vltage generated is = - n d\phi/dt and d\phi is changing while the A is outside...

Hi All! I am working on the Eddy Currents problem. I was to set up the problem and derive some equations for the pivot pendulum with Eddy currents. Please see attachment. As you see the pendulum swings between max point ( just outside the B field) and enters the B field and then...

Thanks Patric! Yeah I noticed that something is wrong with r>>a and r>>b. All good man! Thanks! yeah a good sport! Chris W

I hope you can follow my math here ... anyone? please... is this correct? Thanks Chris W

Man... editing in this form is a challenge Toroid B = (μo i N)/(2 Π r) B = μo i n Solenoid B = (μo i n A L)/(2 Π r) B = (μo i N)/(A L)

Same here: Toroid Solenoid B = (μo i N)/(2 Π r) B = μo i n B = (μo i n A L)/(2 Π r) B = (μo i N)/(A L)