**1)**

E_{y}(P) = (λ_{1} + λ_{2})/(2πrε_{0})

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 E_{y}(P), the value of the y-component of the electric field at point P, located a distance 7.4 cm along the y-axis from the line of charge? Given that linear charge density of the insulating shell, λ_{2} = 2.769 × 10^{-6} C/m^{3}.

2) What is E_{x}(R), the value of the x-component of the electric field at point R, located a distance 1 cm along a line that makes an angle of 30^{o} with the x-axis?

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