Linear charge density:

$\overline{){\mathbf{\lambda}}{\mathbf{=}}{\mathbf{\rho}}{\mathbf{A}}}$

**1)**

The linear charge density, λ_{2} = ρ[(π)(b^{2} - a^{2})]

An infinite line of charge with linear density λ_{1} = 8.8 µC/m is positioned along the axis of a thick insulating shell of inner radius a = 2 cm and outer radius b = 4.1 cm. The insulating shell is uniformly charged with a volume density of ρ = 688 µC/m^{3}.

1) What is λ_{2}, the linear charge density of the insulating shell?

2) What is E_{x}(P), the value of the x-component of the electric field at point P, located a distance 7.4 cm along the y-axis from the line of charge?

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