AP EAMCET201822 Apr 2018Evening ShiftPhysicsElectrostaticsActual
The electric field due to a short electric dipole at a distance r on the axial line from its mid-point is x times the electric field at a distance 2 r on the equatorial line from the mid-point of dipole. Then, the value of x is
Options
- A16
- B9
- C25
- D36
Correct answer
A. 16
Step-by-step solution
On axis, field magnitude, E₁= 2 k p r^3 On equatorial axis, field magnitude E₂= k p (2 r)^3 = k p 8 r^3 So, E₁=16 E₂ x=16