Electrostatics 7 Question 14
14. Two point charges and are held fixed at and respectively of a co-ordinate system. Then
(1995, 2M)
(a) the electric field
(b) work has to be done in bringing a test charge from
(c) electric field at all point on
(d) the dipole moment is
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Answer:
Correct Answer: 14. (c)
Solution:
- The diagramatic representation of the given question is shown in figure.
The electrical field
For
The electric field
[option (c)]
The electrical potential at the origin due to both the charges is zero, hence, no work is done in bringing a test charge from infinity to the origin.
Dipole moment is directed from the