An infinite line of charge with linear density λ = 7.6 μC/m is positioned along the axis of a thick insulating shell of inner radius a = 3 cm and outer radius b = 5 cm. The insulating shell is uniformly charged with a volume density of ρ = -611 μC/m3. (see attachment)(adsbygoogle = window.adsbygoogle || []).push({});

What is Ex(R), the value of the x-component of the electric field at point R, located a distance 1.5 cm along a line that makes an angle of 30o with the x-axis?

What is Ey(R), the value of the y-component of the electric field at point R, located a distance 1.5 cm along a line that makes an angle of 30o with the x-axis?

So I need to find E.

Initially I used this equation:

E= 1/ (4*pi*eo) * (λ/ r) *[either cos/sin counting on which one you're solving for]

where λ = 7.6*10^-6 and r= .015m

The units seem to make sense (comes out to be N/C) but when I get an answer (3945479 for E x-comp) its wrong. Any help please? I'm not really that educated about gauss's law so im not sure what else to do.

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# Homework Help: Gauss Law sphere help

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