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

The value of the Electric field at a distance of 82.8 m from a point charge is 75.3 N/C. Its direction is radially in toward the charge. The Coulomb constant is 8.98755 E9.

Find the magnitude and sign of the point charge at the origin. Answer in units C.

2. Relevant equations

I don't think I have all the necessary formulas. But this is what I do have

E=(KE*Q)/r^2 <---equation 1

F=[KE(Q1)(Q2)]/r^2 <--equation 2

3. The attempt at a solution

I am basically physics illiterate...so bare me some slack...

I used equation 1 to determine Q = 5.743E-5 .

How do I finish this problem? i feel like I'm missing a formula, or need some extra information.

**Physics Forums - The Fusion of Science and Community**

# Magnitude of point charge

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: Magnitude of point charge

Loading...

**Physics Forums - The Fusion of Science and Community**