Home
Class 12
PHYSICS
An electric dipole is placed at a distan...

An electric dipole is placed at a distance x from centre O on the axis of a charged ring of R and charge Q uniformly distributed over it.

(a) Find the net force acting on the dipole.
(b) What is the work done in rotating the dipole through `180^@`?

A

Would be `(KPQ)/(2r^(3))`

B

Would be greater than `(KPQ)/(2R^(3))`

C

Would be smaller than `(KPQ)/(2R^(3))`

D

Must be in direction of vector `vec(p)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION -J(Aakash Challengers Questions)|6 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|10 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

Similar Questions

Explore conceptually related problems

A short electric dipole is placed at a distance x from centre O on the axis of a ring of radius R and charge Q is uniformly distributed over tis. [(a) (find the net force acting on the dipole b) The work done external agent in rotating the dipole through 180^(@) would be

A short electric dipole is placed at a distance x from centre O on the axis of a ring of radius R and charge Q is uniformly distributed over tis. The net force acting on the dipole will be

In the figure shown, an electric dipole is placed at a distance x from an infinitely long rod of linear charge density lambda . ( a ) Find the net force acting on the dipole ? ( b ) What is the work done in rotating the dipole through 180^(@) ? ( c ) If the dipole is slightly rotated about its equilibrium position, find the time period of oscillation. Assume that the dipole is linearly restrained.

A dipole with an electric moment p is located at a distance r from a along thread charge uniformly with a linear density lambda . Find the force F acting on the dipole if the vector p is oriented (a) along the thread (b) along the radius vector r (c ) at the right angles to the thread and the radius vector r.

A dipole with an electric moment p is located at a distance r from a along thread charge uniformly with a linear density lambda . Find the force F acting on the dipole if the vector p is oriented (a) along the thread (b) along the radius vector r (c ) at the right angles to the thread and the radius vector r.

A point charge q is situated at a distance r from one end of a thin conduction rod of length L having a charge Q (uniformly distributed a long its length).find the magnitudes of electric force between the two.

A short dipole is placed on the axis of a uniformly charged ring (total charge -Q, radius R) at a distance R/sqrt(2) from centre of ring as shown in figure. Find the Force on the dipole due to that ring

Charge q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

An electric dipole is held in a uniform electric field. (i) Show that the net force acting on it is zero. (ii) The dipole is aligned parallel to the field. Find the work done in rotating it through the angle fo 180^(@) .

An electric dipole is held in a uniform electric field. (i) Show that the net force acting on it is zero. (ii) The dipole is aligned parallel to the field. Find the work done in rotating it through the angle fo 180^(@) .