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Two Point Charges, Q1 = -1

Question 3

Multiple Choice

Two point charges, Q1 = -1.0 μC and Q2 = + 4.0 μC, are placed as shown in the figure.
(k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2) The y component of the electric field, at the origin O, is closest to Two point charges, Q<sub>1 </sub>= -1.0 μC and Q<sub>2 </sub>= + 4.0 μC, are placed as shown in the figure. (k = 1/4πε<sub>0</sub> = 8.99 × 10<sup>9</sup> N ∙ m<sup>2</sup>/C<sup>2</sup>) The y component of the electric field, at the origin O, is closest to A) 6.0 × 10<sup>-3</sup> N/C. B) -6.0 × 10<sup>-3</sup> N/C. C) 3.8 × 10<sup>-3</sup> N/C. D) -3.8 × 10<sup>-3</sup> N/C. E) 7.1 × 10<sup>-3</sup> N/C.


A) 6.0 × 10-3 N/C.
B) -6.0 × 10-3 N/C.
C) 3.8 × 10-3 N/C.
D) -3.8 × 10-3 N/C.
E) 7.1 × 10-3 N/C.

Correct Answer:

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