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Two spherical conductors of radii \( R_{1} \) and \( R_{2} \) are separated by a distance much larger than the radius of either sphere. The spheres are
\( q_{2} \) connected by a conducting wire as shown in figure. If the charges on the spheres in equilibrium are \( q_{1} \) and \( q_{2} \), respectively, what is the ratio of the field strength at the surfaces of the spheres?
(1) \( R_{2} / R_{1} \)
(2) \( R_{2}^{2} / R_{1}^{2} \)
(3) \( R_{1} / R_{2} \)
(4) \( R_{1}^{2} / R_{2}^{2} \)
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