Question
Download Solution PDFConsider the following statements:
A. The electric potential due to a dipole at its axial point is zero.
B. The electric potential due to a dipole at its equatorial point is zero.
C. The electric potential due to a dipole at its axial point is non-zero.
D. The electric potential due to a dipole at its equatorial point is non-zero.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Electric potential is equal to the amount of work done per unit charge by an external force to move the charge q from infinity to a specific point in an electric field.
- Potential due to a single charged particle Q at a distance r from it is given by:
Where,
ϵ0 is the permittivity of free space and has a value of 8.85 × 10-12 F/m in SI units
EXPLANATION:
- The potential due to a dipole is given by
- At the axial point, θ is zero, hence cosθ = 1, V is non-zero.
- At the equatorial point, θ is
, hence cosθ = 0, V is zero. - Therefore option 3 is correct
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