Part A Constants Three negative point charges lie along a line as shown in the f

Question

Part A Constants Three negative point charges lie along a line as shown in the figure (Figure 1) Find the magnitude and direction of the electric field this combination of charges produces at point P, which lies 6.00 cm from the -q2 charge measured perpendicular to the line connecting the three charges. Assume that q1-4.85 ?C and q2-1.85 pC N/C SubmitPrev ious Answers Request Answer Figure 1 of 1 X Incorrect, Try Again; 4 attempts remaining Part B 8.00 cm6.00 cm outward -q2 toward -q2 8.00 cm evious Answer Correct

Explanation / Answer

Distance between -q1 and P = (0.06^2+0.08^2)^1/2 = 0.1m

Also, The line joining -q1 and P makes angle tan^-1(6/8) = 36.87 degrees with the vertical

So, Field at P = -kq2/0.06^2 - kq1sin36.87/0.1^2 - kq1sin36.87/0.1^2*

where k= 9*10^9

So, Field at P = 9.86*10^6 N/C toward -q2

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