Finally, both charges (still at x = -3.0 m and x = +3.0 m) are negative. The mag

Question

Finally, both charges (still at x = -3.0 m and x = +3.0 m) are negative. The magnitude of the charges is still 7.4 mu C. What is the x-component of the electric field at (x, y) = (0 m, +4.0 m)? N/C What is the y-component of the electric field at (x, y) = (0 m, +4.0 m)? N/C Now both charges (still at x = -3.0 m and x = +3.0 m) are positive. The magnitude of the charges is still 7.4 mu C. What is the x-component of the electric field at (x, y) = (0 m, +4.0 m)? N/C What is the y-component of the electric field at (x, y) = (0 m, +4.0 m)? N/C Now the positive and negative charge switch places. The magnitude of the charges is still 7.4 mu C where the blue one (now at x = +3.0 m) is positive and the red one (now at x = -3.0 m) is negative. What is the x-component of the electric field at (x, y) = (0 m, +4.0 m)?

Explanation / Answer

7. x- component =0 y component =- 2Ecos45 =-[2*9*10^9*7.4*10^-6*cos 45]/(5)^2 =-3767.465 N/C 8. x- component =0 y component =2Ecos45 =[2*9*10^9*7.4*10^-6*cos 45]/(5)^2 =3767.465 N/C 9. x- component=-2Ecos45 =-[2*9*10^9*7.4*10^-6*cos 45]/(5)^2 =-3767.465 N/C y component = 0

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