GravitationHard
Question
Figure shows four charges fixed on the vertex of a square in horizontal plane. A charged bead is constrained to move along a wire. Mark the correct statement (s).
Options
A.In gravity free space a positively charged bead can not be in stable equilibrium at any position.
B.In gravity free space a negatively charged bead can not be in stable equilibrium t any position.
C.In presence of gravity a negatively charged bead cannot be in stable equilibrium position above the plane of fixed charges.
D.In presence of gravity a positively charged bead cannot be in stable equilibrium position above the plane of fixed charges.
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