A +13 nC charge is located at the origin.
A-
What is the electric field at the position (x2,y2)=(−5.0cm,5.0cm)? Write electric field vector in component form.
B-
What is the electric field at the position
(x3,y3)=(−5.0cm,−5.0cm)? Write electric field vector in component form.
Given data
q = 13 nc = 13*10^-9 C
A) electric field at the given point,
E = k*q/d^2
= 9*10^9*13*10^-9/(0.05^2 + 0.05^2)
= 23400 N/c
Ex = -E*cos(45) = -23400*cos(45) = -16546.3 N/c
Ey = E*sin(45) = 23400*sin(45) = 16546.3 N/c
so at (-5cm,5cm)
E = (-16546.3 i + 16546.3 j ) N/c
B)
at (-5cm,-5cm)
E = (-16546.3 i - 16546.3 j ) N/c
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