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

1. If two plates, 1.0 cm by 1.0 cm, with charges of −2.30 µC and +2.30 µC, what is the magnitude of the electric field at b?

+++++++++++++

.........b

-----------------

2. A uniform electric field of strength E = 4.80×10^4 N/C is observed in the region adjacent to a large, uniformly charged plate. What is the charge per unit area on the plate?

ll---->

ll---->

ll---->

ll---->

bar ll E field -->

2. Relevant equations

E=F/Q

E= sum kq1/(d1)^2

density = E*[tex]\epsilon[/tex]o

[tex]\epsilon[/tex] = 8.85x10^-12

3. The attempt at a solution

Not sure how to solve 1, due to the distance from the plate to B is not given.

for 2, I thought it would just be (8.85x10^-12)(4.80x10^4) = 4.25x10^-7 C/m^2

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

Dismiss Notice

Join Physics Forums Today!

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

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

# Homework Help: Electric Fields of two plates

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