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Help me understand! The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively

The potential at a point due to an electric dipole will be maximum and minimum when  the angles between the axis of the dipole and the line joining the point to the dipole are respectively           

  • Option 1)

    90 \degree ..and.. 180 \degree

  • Option 2)

    0 \degree ..and.. 90 \degree

  • Option 3)

    90 \degree ..and.. 0 \degree

  • Option 4)

    0 \degree ..and.. 180 \degree

 
Answers (1)
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As we have learned

At equatorial Point -

E_{equi}= \frac{kP}{\left ( r^{2}+l^{2} \right )^{\frac{3}{2}}}

If r >> l

E_{equi}= \frac{1}{4\pi \varepsilon _{0}}\frac{P}{r^{3}}

V_{equi}= 0

 

- wherein

Angle between Eaxial and P is 180°.

 

 V= \frac{p \cos \theta }{r^2}.. if \theta = 0\degree..then..V_a= max

 


Option 1)

90 \degree ..and.. 180 \degree

Option 2)

0 \degree ..and.. 90 \degree

Option 3)

90 \degree ..and.. 0 \degree

Option 4)

0 \degree ..and.. 180 \degree

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