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

The electric field strength 8.05 cm from a very long charged wire is 1310 N/C. What is the electric field strength (in N/C) 30.0 cm from the wire?

2. Relevant equations

E=F/Q

E=KQ/R^2

3. The attempt at a solution

First I try to find the charge using E=KQ/R^2

1320=K(Q)/(8.05)^2

Q= 9.432 x 10^-6

second I used the charge to find the electric field.

E= k(9.432 x 10^-6)/30^2

E= 94.32 N/C

I didn't convert cm to m because it would cancel out at the end.

so I don't know why my answer is still wrong.Any help will be great.

thanks guys.

**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 Field

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