Part A Constants Calculate the electric field at point A, located at coordinates

Question

Part A Constants Calculate the electric field at point A, located at coordinates (0 m, 12.0 m Two point charges are placed on the x axis. (Figure 1)The first charge, q1-8.00 nC , is placed a distance 16.0 m from the origin along the positive x axis; the second charge, 26.00 nC, is placed a distance 9.00 m from the origin along the negative x axis. Give the x and y components of the electric field as an ordered pair. Express your answer in newtons per coulomb to three significant figures. View Available Hint(s) A, EAy 0,0.300 N/C Correct Term 1: Significant Figures Feedback: Your answer 1.10-51x10-5 N/C was either rounded differently or used a different number of significant figures than required for this part. Part B An unknown additional charge qs is now placed at point B, located at coordinates (0 m, 15.0 m). Find the magnitude and sign of g3 needed to make the total electric field at point A equal to zero. Figure 1 of 1 Express your answer in nanocoulombs to three significant figures. View Available Hint(s) B (Om. 15 m) A (0 m, 12 m) 0 nC 0(0111. 0 m) 92 -9 m, 0m) q1 16 m, 0 m) Submit

Explanation / Answer

B)

r = distance of point B from point A = 15 - 12 = 3 m

q = charge at B = ?

EA = electric field at A = 0.3 N/C

for the net electric field to be zero at A ,

EB = electric field by charge at B at location A = Electric field at A by the two charges present on X-axis = EA

kq/r2 = 0.3

(9 x 109) q/(3)2 = 0.3

q = 0.3 nC

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