Please answer all of the questions. -/4 points SerPSE9 23.P025 Four charged part

Question

Please answer all of the questions. -/4 points SerPSE9 23.P025 Four charged particles are at the corners of a square of side a as shown in the figure below. (Let A = 3, B = 2, and C = 7") My Notes Ask Your Teacher CL Bq (a) Determine the electric field at the location of charge q. (Use the following as necessary: q, a, and ke.) magnitude direction I(counterclockwise from the +x-axis) (b) Determine the total electric force exerted on q. (Use the following as necessary: q, a, and ke.) magnitude direction "(counterclockwise from the +x-axis) Need Help? L Read It Submit Answer Save Progress Practice Another Version

Explanation / Answer

a) Ex= k q { 3/ a^2 + 2 cos 45 /2a^2 ) = kq ( 3/a^2 + 0.707/a^2) = 3.707kq/ a^2

Ey = kq ( 7/a^2 +  2 cos 45 /2a^2) = 7.707 kq/ a^2

E = sqroot ( Ex^2 + Ey^2) = kq/a^2 sqroot ( 3.707^2 + 7.707^2) = 8.55 kq/a^2  

angle= tan^-1 ( 7.707/ 3.707) =64.3 degree from + x axis

b) force= Eq = 8.55kq^2/ a^2

direction = 64.3 degree from + x axis

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