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

If the total charge on a rod of length 0.4 m is 2.6 nC, what is the magnitude of the electric field at a location 1 cm from the midpoint of the rod?

2. Relevant equations

[(2QK)/(Y)](1/sqrt(L^2 + 4[(Y)^2]), K = 8.99E9

I don't know if the above equation is actually correct.

3. The attempt at a solution

[2(2.6E-9)(8.99E9) / (0.01)] * 1 / sqrt(0.4^2 + 4(0.01^2)]

= 11700 N/C

Can anyone check if this is correct? I don't think it's correct.

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# Homework Help: Uniformly-charged Thin Rod

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