Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
The magnitude of the electric field vector on the ground is 100 N/C and it's direction towards the ground and perpendicular to it . The magnitude decreases as we go further from the ground till it reaches 20N/C at height 1400m.
Calculate the average volume charge density (ρ) of the air layer between the ground and this height.
 one year ago
 one year ago
The magnitude of the electric field vector on the ground is 100 N/C and it's direction towards the ground and perpendicular to it . The magnitude decreases as we go further from the ground till it reaches 20N/C at height 1400m. Calculate the average volume charge density (ρ) of the air layer between the ground and this height.
 one year ago
 one year ago

This Question is Closed

VincentLyon.FrBest ResponseYou've already chosen the best response.1
Do you know MaxwellGauß equation: \(\vec\nabla.\vec E = \rho/\epsilon_o\)
 one year ago

y2o2Best ResponseYou've already chosen the best response.0
Actually No , I still haven't studied the all the Maxwell equations. I studied Gauss law , but I didn't study the divergence form of it. I don't know if it can be solved by Gauss law. \[{\int\limits_{}^{} E.dA = } {Q \over \epsilon_o}\]
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.1
Ok, now you have to choose a Gaussian surface that goes from the altitude O to 1400 m. Work out flux of E, then you will get Q. Divide by volume and you will get \(\rho\).
 one year ago

y2o2Best ResponseYou've already chosen the best response.0
I thought of this , but I couldn't do it. because I don't know the right G.surface to choose , and also I wasn't given any area to find a volume
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.1
Use any cylinder of base A and height h = 1400 metres. Volume inside cylinder will be: V = A.h
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.