NEET2020PhysicsElectrostaticsActual
A short electric dipole has a dipole moment of 16 × 10 – 9   C   m . The electric potential due to the dipole at a point at a distance of 0.6   m from the centre of the dipole, situated on a line making an angle of 60 ° with the dipole axis is: 1 4 π ε 0 = 9 × 10 9   N   m 2   C - 2
Options
- A200   V
- B400   V
- Czero
- D50   V
Correct answer
A. 200   V
Step-by-step solution
We know that, Electric dipole potential, V = 1 4 π ε ∘ p c o s θ r 2 , for large distance of r . V = k P cos θ r 2 = 9 × 10 9 × 16 × 10 − 9 ( 0 .6 ) 2 × 1 2 V = 200   V