Please help with Part B! I keep getting 2.6 x 10^5 N/C. Where am I going wrong.

Question

Please help with Part B! I keep getting 2.6 x 10^5 N/C. Where am I going wrong. Thank you so very much.

Problem 20.44 An electric dipole is formed from t 5.0 nCpoint charges spaced 3.0 mm apart. The dipole is centered at the origin, oriented along the aXIS Part A What is the electric field strength at point (z, y) 3 (10 mm 0 cm)? Express your answer using two significant figures. E- 1.3x10 N/C 5 Submit My Answers Give Up Correct Part B What is the electric field strength at point (z,y) (0 cm, 10 mm Express your answer using two significant figures. Submit My Answers Give Up N/C

Explanation / Answer

a) electric field E = kq*2sin /r^2

= tan^-1(1.5/10) = 8.53

E = 2*9*10^9*5*10^-9*sin8.53/0.01^2

E = 1.3*10^5 N/C

b) E = p/(2y^3) = 2*9*10^9*5*10^-9*3*10^-3/0.01^3

E = 2.7*10^5 N/C

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