Electric Field Due to a Dipole at a General Point in Space
Trending Questions
Q. Two equal point charges A and B are R distance apart. An equal third charge is placed on the perpendicular bisector at a distance d from the centre will experience maximum electrostatic force when
- d=R2√2
- d=R√2
- d=R√2
- d=2√2R
Q. The figure shows a closed dotted surface which intersects a conducting uncharged sphere. If a positive charge is placed at the point P, the flux of the electric field through the closed surface
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1126270/original_16.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1126270/original_16.png)
- will remain zero.
- data insufficient
- will become negative.
- will become positive.
Q. An electric dipole of length 4 cm , when placed with its axis making an angle of 60∘ with a uniform electric field , experiences a torque of 4√3 Nm. Find the potential energy of the dipole, if the dipole has charges of ±8 nC (in J)
Q. A short dipole is placed at origin of coordinate system in x-y plane as shown in figure. Find the electric field at point P(0, y). (y>> length of dipole)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1112002/original_DIA_3.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1112002/original_DIA_3.png)
- Kp2y3[−2ˆi−ˆj]
- Kp√2y3[−ˆi−2ˆj]
- √2Kpy3[−ˆi−2ˆj]
- 2Kpy3[−2ˆi−ˆj]
Q. A short dipole is placed at origin of coordinate system in x-y plane as shown in figure. Find the electric field at point P(0, y). (y>> length of dipole)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1112002/original_DIA_3.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1112002/original_DIA_3.png)
- Kp√2y3[−ˆi−2ˆj]
- √2Kpy3[−ˆi−2ˆj]
- Kp2y3[−2ˆi−ˆj]
- 2Kpy3[−2ˆi−ˆj]
Q. A point charge +10 nC is located on the axis of a disc of radius 1 m at a distance of √3 m from the plane of the disc as shown in the figure. The electric flux from the charge passing through the disc is
(Take ϵo=9×10−12 C2/N-m2)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1121570/original_53.png)
(Take ϵo=9×10−12 C2/N-m2)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1121570/original_53.png)
- 74.4 N-m2/C
- 84.4 N-m2/C
- 64.4 N-m2/C
- 94.4 N-m2/C
Q. An electric dipole is placed along the x-axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP makes an angle π3 with the x-axis. If the electric field at P makes an angle θ with the x-axis, the value of θ would be
- π3
- π3+tan−1(√32)
- 2π3
- tan−1(√32)