Home
Class 11
PHYSICS
The moment of couple acting on an electr...

The moment of couple acting on an electric field is maximum when

A

axis of electric dipole is parallel to uniform field

B

axis of electric dipole is perpendicular to uniform field

C

field is non-uniform

D

axis of electric dipole is inclined at an angle `45^@` to the field

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

  • FORCE

    TARGET PUBLICATION|Exercise Evaluation Test|18 Videos

Similar Questions

Explore conceptually related problems

Derive an expression for couple acting on an electric dipole kept in a uniform electric field.

The moment of couple is independent of

Derive the expression for the couple acting on the electric dipole in uniform electric field

Derive an expression for torque acting on an electric dipole in uniform electric field.

The unit of intensity of electric field is

The dimensional formula for electric field is

The negative gradient of potential at any point in electric field is

Answer the following questions : Study the following principle and answer the questions. A force is excreted on a current - carrying conductor placed in a magnetic field. The direction of this force depends on both the direction of the current and the direction of the magnetic field . This force is maximum when the direction of the current is perpendicular to the direction of the magnetic field. In which electrical equipment is this principal used?

The torque on a bar magnet due to the earth's magnetic field is maximum when the axis of the magnet is

If a charge is moved against the coulomb force of an electric field, then

TARGET PUBLICATION-ELECTROSTATICS-EXCERCISE
  1. An electric dipole is kept in non-uniform electric field. It experienc...

    Text Solution

    |

  2. When axis of electric dipole lies along the direction of field then to...

    Text Solution

    |

  3. The moment of couple acting on an electric field is maximum when

    Text Solution

    |

  4. An electric dipole consisting of two opposite charges of 2 xx 10^-6 ea...

    Text Solution

    |

  5. The magnitude (minimum) of charge that a particle can have is

    Text Solution

    |

  6. When the charge is not accumulated in some part of a conductor but spr...

    Text Solution

    |

  7. We can define the term charge density when distribution of charge is .

    Text Solution

    |

  8. Linear charge density for a circle of radius r is

    Text Solution

    |

  9. 10 muC charge is uniformly distributed along a wire of length 5m. Its ...

    Text Solution

    |

  10. Charge per unit area is called as .

    Text Solution

    |

  11. The SI unit of surface charge density is

    Text Solution

    |

  12. Asphere of radius 10 cm is given a charge of 20 muC on its surface. Th...

    Text Solution

    |

  13. Volume charge density is

    Text Solution

    |

  14. A charge of magnitude 2muC is distributed uniformly throughout the soi...

    Text Solution

    |

  15. Two identical conductors of copper and aluminium are placed in an iden...

    Text Solution

    |

  16. Assertion : When charges are shared between two bodies, there occurs n...

    Text Solution

    |

  17. Four charged balls numbered 1 to 4 are suspended using separate thread...

    Text Solution

    |

  18. Which among the following is a sure test of electrification?

    Text Solution

    |

  19. When a body is connected to the earth, electrons from the earth flow i...

    Text Solution

    |

  20. Which of the following is NOT true about dielectric constant?

    Text Solution

    |