What is the electric field at point 1 in (Figure 1)? Give your answer in compone

Question

What is the electric field at point 1 in (Figure 1)? Give your answer in component form. Assume that alpha = 2.5 cm and b = 4.1 cm. Enter the x and y components of the electric field separated by a comma. What is the electric field at point 2 in the figure? Give your answer in component form. Enter the x and y components of the electric field separated by a comma. What is the electric field at point 3 in the figure? Give your answer in component form. Enter the x and y components of the electric field separated by a comma.

Explanation / Answer

a) E1x = 0

E1y = 9*10^9*10*10^-9 / 0.025^2 = 1.44*10^5 N/C

b) r = sqrt ( 2.5^2 + 4.1^2 ) = 4.802 cm

E2 = 9*10^9*10*10^-9 / 0.048^2 = 3.90*10^4 N/C

E2x = E2*CosQ = 3.33*10^4 N/C

E2y = E2*SinQ = 2.03*10^4 N/C

c) E3x = 9*10^9*10*10^-9 / 0.041^2 = 5.35*10^4 N/C

E3y = 0

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