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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two concentric rings, one of radius a and the other of radius b, have the charges +q, and −(2/5)^−3/2q, respectively as shown in fig. Find the ratio b/a if a charge particle placed on the axis at z =a is i equilibrium.

Two concentric rings, one of radius a and the other of radius b, have the charges +q, and −(2/5)^−3/2q, respectively as shown in fig. Find the ratio b/a if a charge particle placed on the axis at z =a is i equilibrium.

and −(2/5)^−3/2q have the charges +q one of radius a and the other of radius b respectively as shown in fig. Find the ratio b/a if a charge particle placed on the axis at z =a is i equilibrium. Two concentric rings