Question 1
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You are given two unknown point charges, \( Q_{1} \) and \( Q_{2} \). At a point on the line joining them, one-fourth of the way from \( Q_{1} \) to \( Q_{2} \), the third charged particle is located, the net electrostatic force on the third charge is zero. What is the ratio \( Q_{1} / Q_{2} \) ?
Select one:
a. \( 1 / 9 \)
b. \( 1 / 4 \)
C. 4
d. 9
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