Home
Class 12
PHYSICS
The dipole moment of a dipole is 4 xx 10...

The dipole moment of a dipole is `4 xx 10^(-9)` Cm. The po1ential of a point away from 0.2 rn, the direction maJting an angle `60^(@)` with axis of dipole is .........

A

`4.5 `V

B

45 V

C

450 V

D

4500 V

Text Solution

Verified by Experts

The correct Answer is:
D

`V = (kq cos theta)/(r^(2))=(9xx10^(9)xx4xx10^(-9)xxcos 60^(@))/((0.2)^(2))`
`= (3.6xx1)/(0.04xx2) = 450 V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    KUMAR PRAKASHAN|Exercise Section D ( MCQs asked in Cometitive Exams )|39 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    KUMAR PRAKASHAN|Exercise Section C ( NCERT Exemplar Solution ) ( Long Answer Type Questions )|12 Videos
  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise BOARD.S QUESTION PAPER MARCH - 2020 (PART - B) SECTION - C|5 Videos
  • MAGNETISM AND MATTER

    KUMAR PRAKASHAN|Exercise SECTION D Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams) MCQs asked in Board Exam and GUJCET|7 Videos

Similar Questions

Explore conceptually related problems

The electric dipole moment of an HCl atom is 3.4 xx 10^(-30) Cm. The charges on both atoms are unlike and of same magnitude. Magnitude of this charge is ........The distance between the charges is 1 A.

An electric dipole with dipole moment 4 xx 10^(-9) Cm is aligned at 30° with the direction of a uniform electric field of magnitude 5 xx 10^4 NC^(-1) . Calculate the magnitude of the torque acting on the dipole.

The magnetic dipole moment of steel wire of length L is m. It is bent from the middle and arranged as 60°. So the new magnetic dipole moment will be ......

An electric dipole is kept on the axis of a uniformly charged ring at distance from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is p , charge of the ring is Q & radius of the ring is R . The force on the dipole is

A non-uniform electric field is represented by vecE = 5xhati Vm^(-1) . An electric dipole having moment. P = 20 xx 10^(-20) cm is placed at an angle of 60° with the field. The net force on the dipole is.........N.

A magnet of magnetic dipole moment 5.0 Am^(2) is lying in a uniform magnetic field of 7 xx 10^(-4) T such that its dipole moment vector makes an angle of 30° with the field. The work done in increasing this angle from 30° to 45° ls about ......... J.

A charge +Q is fixed at the origin of the co-ordinate system while a small electric dipole of dipolement vecp pointing away from the charge along the x-axis is set free from a point far away from the origin. (a) Calculate the K.E. of the dipole when it reaches to a point (d, 0). (b) Calculate the force on the charge +Q at this moment.

Tow charges pm10 mu C are placed 5.0 mm apart determine the electric field at (a) a point p on the axis of the dipole 15 cm away from its centre o ont the side of the positive charge as (a) and (b) a point q 15 cm away from o on a line passing through o and normal to the axis of the dipole as

Two small and similar bar magnets have magnetic dipole moment of 1.0 Am^(2) each. They are kept in a plane in such a way that their axes are perpendicular to each other. A line drawn through the axis of one magnet passes through the centre of other magnet. If the distance between their centers is 2 m, find the magnetic field at the mid point of the line joining their centers.

The plane makes the angles (pi)/(4),(pi)/(4) and (pi)/(2) with the positive direction of X - axis, Y - axis and Z- axis respectively. The length of perpendicular drawn from origin to the plane is sqrt(2) , then the equation of the plane is .......

KUMAR PRAKASHAN-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Section D ( Multiple Choice Questions (MCQs) )
  1. The electric potential due to any point electric dipole varies as .......

    Text Solution

    |

  2. Two charges - q and + q are located at points A(0, 0, - a) and B(0, 0,...

    Text Solution

    |

  3. The dipole moment of a dipole is 4 xx 10^(-9) Cm. The po1ential of a p...

    Text Solution

    |

  4. 10 muC charge Is placed on each vertex of equilateral triangle of 10 c...

    Text Solution

    |

  5. For a point on the axis of the electric dipole theta = 0 and theta = p...

    Text Solution

    |

  6. Potential energy of an electric dipole is minimum (Negatively maximum)...

    Text Solution

    |

  7. When a n electric dipole is in st able equilibrium, in uniform electri...

    Text Solution

    |

  8. A surface, value of electric potential on whichis same at all the poin...

    Text Solution

    |

  9. Angle between equipotential surface and electric field is ......

    Text Solution

    |

  10. A V - X graph for an electric field in X-direction is shown in the fig...

    Text Solution

    |

  11. Uniformly polarised dielectric has ...... of induced charge.

    Text Solution

    |

  12. C^(2)mN^(-1) is unit of ...... .

    Text Solution

    |

  13. Value of dielectric constant of metal is.......

    Text Solution

    |

  14. Which of the following atoms has permanent electric dipole moment zero...

    Text Solution

    |

  15. Which of the following atoms behave as polar dielectric ?

    Text Solution

    |

  16. The charge 3.0 xx 10^(-5) C are placed on a metal sphere of radius 3....

    Text Solution

    |

  17. A parallel plate capacitor is charged and then isolated. Now a dielect...

    Text Solution

    |

  18. A parallel plate capacitor is charged with a battery and then separate...

    Text Solution

    |

  19. Which of the following one, the capacitance of parallel plate capacito...

    Text Solution

    |

  20. Which of the following equation doesn't represent energy of charged ca...

    Text Solution

    |