Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Two point charges +q and $-\overline{q}$ are held fixed at $(-d,0)$ and $(d,0)$ respectively of a $(X,Y)$ coordinate system. Then
A
E at all points on the $Y_-$ axis is along $\hat{\imath}$
B
The electric field 
at all points on the $X_-$ axis has the same direction
at all points on the $X_-$ axis has the same direction
C
Dipole moment is 2qd directed along $\hat{\imath}$
D
Work has to be done in bringing a test charge from infinity to the origin
Text Solution
Verified by ExpertsThe correct answer is:
A
From figure, it is clear that 
at all points on the y-axis is along $\hat{i}$ . Here 
of all points on x-axis cannot have the same direction. Here electric potential at origin is zero so no work is done in bringing a test charge from infinity to origin.
Here dipole moment is in – x direction (– q to +q). Hence only option is correct.
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