(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Q1,Infinite uniform line charges of 5 nC/m lie along the x and y axes in free space. Find E at (a), P(0, 0 , 4); and (b), P (0 ,3 , 4)

Q2, Three infinite uniform sheets of charge are located in free space as follows: 3 nC/m^{2}at z= -4, 6 nC/m^{2}at z=1, -8 nC/m^{2}at z=4. Find E at point P (2,5,-5)

2. Relevant equations

E=ρ_{L}/2∏ε0ρ

Q1,I used this got: a), E=22.5z V/m

b), E=10.8y + 14.4z V/m

Q2, I used E= ρ/2ε0

3. The attempt at a solution

Q1, The right answer is a), E=45z V/m b), E = 10.8y+36.9z V/m

I really confused in this topic, So wish your guys help me. Thanks a lot.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: The electric field of infinite line charges and infinite sheet of charges

**Physics Forums | Science Articles, Homework Help, Discussion**