Home
Class 12
PHYSICS
Three charges of (+2q), (-q) and (-q) ar...

Three charges of `(+2q), (-q)` and `(-q)` are placed at the corners `A,B` and `C` of an equilateral triangle of side `a` as shown in the adjoining figure. Then the dipole moment of this combination is

A

`qa`

B

Zero

C

`qasqrt(3)`

D

`(2)/(sqrt(3))qa`

Text Solution

Verified by Experts

The correct Answer is:
C
The charge `+2q` can be broken in `+q, +q`. Now as shown in the figure we have two equal dipoles inclined at an anlge of `60^(@)`. Therefore resultant dipole moment will be
`P_(n et)= sqrt(P^(2)+P^(2)+2ppcos60^(@))`

`P_(n et)= sqrt(3)p= sqrt(3)qa`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRIC CHARGE, FIELD & FLUX

    A2Z|Exercise Problems Based On Mixed Concepts|40 Videos

  • ELECTRIC CHARGE, FIELD & FLUX

    A2Z|Exercise Section B - Assertion Reasoning|25 Videos

  • ELECTRIC CHARGE, FIELD & FLUX

    A2Z|Exercise Electric Field And Gauss'S Law|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • ELECTRIC POTENTIAL & CAPACITANCE

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

Three points charges are placed at the corners of an equilateral triangle of side L as shown in the figure:

Three charges +q,+q and -q are located at the corners of an equilaterial triangle of side a. Calculate potential energy of the system.

Knowledge Check

  • Three point charges of +2q , +2q and -4q are placed at the corners A, B and C of an equilateral triangle ABC of side x. The magnitude of the electric dipole moment of this system is

    A
    `2 qx`
    B
    `3sqrt2 qx`
    C
    ` 3 qx`
    D
    `2sqrt3 qx`

  • Three point charges of +2q,+2q and -4q are placed at the corners A, B and C of an equilateral triangle ABC of side x. The magnitude of the electric dipole moment of this system is

    A
    2 qx
    B
    `3sqrt(2) qx`
    C
    3 qx
    D
    `2sqrt(3) qx`

  • Three charges 2q, -q, and -q are located at the vertices of an equilateral triangle. At the center of the triangle,

    A
    the field is zero but potential is nonzero.
    B
    the field is nonzero but potential is zero.
    C
    both field and potential are zero.
    D
    both field and potential are nonzero.

    • Similar Questions

    Explore conceptually related problems

    Three charges are arranged on the vertices of an equilateral triangle as shown in figure (29.E6) find the dipole moment of the combination.

    Three point charges are kept at the three corners of an equilateral triangle of edge length a, as shown in the figure. The net electric dipole moment of the system is

    Three charges -q +q and +q are placed at the corner of the equilateral triangle of side a as shown in the figure.The net electric potential at the centroid of the triangle will be (k=(1)/(4 pi varepsilon_(0)))

    Three charges Q, (+q) and (+q) are placed at the vertices of an equilateral triangle of side l as shown in the figure. It the net electrostatic energy of the system is zero, then Q is equal to

    Three charges +Q each are placed at the corners A,B and C of an equilateral triangle. At the circumcenre, O the electric field wil be

    Home
    Profile