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An electric dipole is placed on the $x-$axis as shown in the figure. Consider a spherical closed surface around it. Then 
  • A
    electric potential at every point on the surface is zero
  • BThe work done in bringing a test charge from point $B$ to $D$ is non-zero
  • CThe work done in bringing a test charge from point $A$ to $C$ is non-zero
  • DIf electric field at point $A$ is zero, then electric field at point $B$ will be $\frac{1}{2}\overrightarrow E $
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