AH! who would have thought this would involve a completely rational explanation ;-) ha, thanks so much for all of your help - it's all making damn near perfect sense now!
if I'm not mistaken, i believe the change in magnetic flux will induce a current to run through the wire of the smaller loop of EMF = -dFlux/dt. my only snag at this point is that the magnetic field at t=.5 sec, since the sign of the current is only to distinguish direction, the 165A would be...
So i figured the flux of the smaller loop (flux = BA) would just be the Magentic Field due to the current from the larger loop * the given area of the small loop. and would change as B changes due to the current changing. Is this the right way to look at it, or am I still on the wrong track...
I have no idea, i feel like that's what I need to know to start the problem. all i can think is that the magnitude at the center initially is B=(4*pi*e-7 Tm/A)(165 A)/ 2*.01m since the two circles share a common center and there is no initial current running through the smaller loop...I feel...
Homework Statement
A small circular loop of area 2.00 cm^2 is placed in the plane of, and concentric with, a large circular loop of radius 1.00 m. The current in the large loop is changed at a constant rate from 165 A to -165 A (a change in direction) in 1 s, beginning at t = 0. What is the...
Hi!
so R1 and R2 are parallel...their equivalent is then in series with R3.
At the same time, R4 and R5 are in series.
===R1=|
|...|==R3==|
===R2=|....|
|......|===|
|===R4===R5==|...|
|===+\EMF\-=======|
sorry that's the best i can do :-(
awesome so the circuit isn't showing up...BUT...take my word for it that the R's I said were parallel/series actually are...I'm pretty confident that part is absolutely correct
Homework Statement
In Figure 27-72, an ideal battery with an emf of = 14.0 V is connected to a network of resistances with R1 = 7.00 , R2 = 12.0 , R3 = 4.00 , R4 = 1.00 and R5 = 6.00 . What is the potential difference across R5?
FIGURE:
|----**R1**---|
|...
Homework Statement
An electron (e) is to be released from rest on the central axis of a uniformly charged disk of radius R. The surface charge density on the disk is +3.50 µC/m2.
(a) What is the magnitude of the electron's initial acceleration if it is released at a...