Calculating Electric Field Strength Using Gauss' Law

AI Thread Summary
The discussion revolves around calculating electric field strength using Gauss' Law, specifically addressing a homework problem. The user has repeatedly arrived at a result of -1.738x10^{-19} but is unsure if this is correct. A suggestion is made to post the calculations for clarity, indicating a potential confusion between electric field and electric flux. The user acknowledges this feedback and expresses gratitude for the assistance. Understanding the distinction between electric field and electric flux is crucial for solving the problem correctly.
1MileCrash
Messages
1,338
Reaction score
41

Homework Statement



Attached

Homework Equations



Gauss' Law

The Attempt at a Solution



\epsilon_{0} E(4\pi r^{2}) = q_{enc} = -1.738x10^{-19}
 

Attachments

  • gausslaw.jpg
    gausslaw.jpg
    9.6 KB · Views: 478
Last edited:
Physics news on Phys.org
I have come to this result many times and its the only thing keeping me from my 100. Any ideas?
 
1MileCrash said:
I have come to this result many times and its the only thing keeping me from my 100. Any ideas?

Post your calculation; but I suspect you're confusing electric field with electric flux. Can't be sure unless you show your arithmetic.
 
I see that, you're absolutely right.

Thank you!
 
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...
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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...
Back
Top