A -10 μC charge is placed on the x-axis at the origin. Two +10 μC charges are placed on the y-axis: one at y = +0.1 m and one at y = -0.1 m. Consider a point A which is on the x-axis at x = 0.2 m. (for all answers below assume the unit vectors x-hat and y-hat point towards positive x and positive y).

(Questions below.)

Question

A -10 μC charge is placed on the x-axis at the origin. Two +10 μC charges are placed on the y-axis: one at y = +0.1 m and one at y = -0.1 m. Consider a point A which is on the x-axis at x = 0.2 m. (for all answers below assume the unit vectors x-hat and y-hat point towards positive x and positive y).

(Questions below.)

anonymous · Answer

a) What is the x-component of the electric field at the point A? 
Express your answer using three significant figures. Answer in x-hat N/C. 

b) What is the y-component of the electric field the point A? Answer in y-hat N/C. << Found to be 0

c) If you put a charge q = -5 μC at the point A, what is the x-component of the force? Answer in x-hat N. 

d) If you put a charge q = -5 μC at the point A, what is the y-component of the force? Answer in y-hat N. << Found to be 0