Calculating E Field in an Infinitely Long Solenoid with Time Dependent B Field

  • Thread starter Thread starter moonman
  • Start date Start date
  • Tags Tags
    Fields Time
AI Thread Summary
To calculate the electric field in an infinitely long solenoid with a time-dependent magnetic field, Faraday's Law is essential, as it relates changing magnetic fields to induced electric fields. The discussion highlights confusion around using Ampere's Law, which may not be suitable for this scenario due to the infinite nature of the solenoid. Participants suggest providing the complete problem statement for better assistance and emphasize the importance of understanding the relationship between the magnetic field and the induced electric field. Clarifying the magnetic field expression is crucial for accurate calculations. Engaging with these concepts will lead to a clearer understanding of the problem.
moonman
Messages
21
Reaction score
0
How would I go about doing this problem? I have an infinitely long solenoid with a time dependant magnetic field inside. How can I find the E field?
I've been trying something with Ampere's law, but I'm having trouble avoiding an infinite answer. Any insight would be appreciated. Thanks
 
Physics news on Phys.org
Hint #1: Do you know Faraday's Law?

Hint #2: Why are you using Ampere's Law? You already have the expression for the B field right?
 
Why don't you post the problem in its entirety?It would be much nicer to fomulate an opinion,if i knew what i was talking about.

Daniel.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Calculating magnetic field outside a solenoid
Replies
15
Views
1K
Non-Uniform Magnetic Field Calculations
Replies
9
Views
2K
Understanding self-inductance in a solenoid.
Replies
3
Views
1K
Current in circular wire surrounding infinite solenoid in a circuit
Replies
7
Views
1K
{ help } Calculating the B-field at the center of a solenoid
Replies
1
Views
2K
Poynting theorem and electromagnetic density
Replies
7
Views
1K
Electron in a time variable magnetic field
Replies
5
Views
1K
Confusion on the magnitude of magnetic fields
Replies
6
Views
1K
Calculating flux through a plane cutting two concentric cylinders
Replies
26
Views
1K
Magnetic field in a solenoid with rectangular cross-sectional area
Replies
25
Views
3K

Hot Threads

Recent Insights

Back
Top