Here's the homework problem I'm having trouble with:(adsbygoogle = window.adsbygoogle || []).push({});

A solid metal sphere of radius .4 m carries a net charge of .190nC. Find the magnitude of the electric field at a point .130 m outside the surface of the sphere.

I used the equation EA=q/Epsilon_0

E(4*pi)(r^2)=q/Epsilon_0

E(4*pi)(.130+.4)^2=(.190E-9)/(8.854E-12)

E on the right hand side of equation is used to denote scientific notation.

Solving for the electric field I get 75.748 N/C.

Am I doing this correctly?

Any feedback would be appreciated!

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# Homework Help: Gauss's Law problem

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