Home
Class 12
PHYSICS
A clock face has charges -q, -2q, ,........

A clock face has charges `-q, -2q, ,.....-12q` fixed at the position of the corresponding numerals on the dial. The clock hands do not disturb the net field due to point charges. At what time does the hour hand point in the direction of the electric field at the centre of the dial.

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Partice Exercise 1.1|1 Videos

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Partice Exercise|93 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs|33 Videos

  • GEOMETRICAL OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems|107 Videos

Similar Questions

Explore conceptually related problems

Charges 1q, 2q, 3q and 4q are placed at the corners A,B,C and D of a square as shown in Fig. The direction of electric field at the centre of square is along :

Two point charges +4q and +q are placed 30cm apart. At what point on the line joining them is the electric field zero

A cube of side 'a' has point charges +Q located at each of its vertices except at the origin where the charge is -Q. The electric field at the centre of cube is :

Two charges 4q and q are placed 30 cm. apart. At what point the value of electric field will be zero

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

Five point charge ( +q each) are placed at the five vertices of a regular hexagon of side 2a .what is the magnitude of the net electric field at the centre of the hexazon?

" Electric field intensity due to a point charge " "q" ' at a distance 'r' from it is "

PHYSICS GALAXY - ASHISH ARORA-ELECTROSTATICS-Unsolved Numberical Problems
  1. A clock face has charges -q, -2q, ,.....-12q fixed at the position of ...

    Text Solution

    |

  2. A small sphere is charged uniformly and placed at point A (u, v) so th...

    Text Solution

    |

  3. The electric intensity Eat a point on the axis ofa ring of radius a at...

    Text Solution

    |

  4. Two long wires each oflength I are placed on a smooth horizontal table...

    Text Solution

    |

  5. Four charges +50 xxI0^(-9)C, -12 xx I0^(-19)C, + 36 xx I0^(-9)C " and ...

    Text Solution

    |

  6. A solid conducting sphere of radius R is placed in a uniform electric ...

    Text Solution

    |

  7. Suppose in an insulating medium, having di-electric constant k= 1, vol...

    Text Solution

    |

  8. Two short dipoles phat(k) and P/2 hat(k) are located at (0,0,0) & (1m,...

    Text Solution

    |

  9. Two long straight parallel wires carry charges lambda(1) and lamda(2) ...

    Text Solution

    |

  10. Find the magnitude of uniform electric field E of which the direction ...

    Text Solution

    |

  11. Two short electric dipoles having dipole moment p(1)" and "p(2) are ...

    Text Solution

    |

  12. Three identically charged, small spheres each of mass m are suspended ...

    Text Solution

    |

  13. Two horizontal parallel conducting plates are kept at a separation d =...

    Text Solution

    |

  14. A small cork ball A of mass m is suspended by a thread of length I. An...

    Text Solution

    |

  15. A particle of mass m having negative charge q moves along an ellipse a...

    Text Solution

    |

  16. Two concentric spheres of radii R and 2R are charged. The inner sphere...

    Text Solution

    |

  17. A charged particle of radius 5xx10^(-7)m is located in a horizontal el...

    Text Solution

    |

  18. Two small balls having the same mass and charge and located on the sam...

    Text Solution

    |

  19. What is the percentage change in distance if the force of attraction b...

    Text Solution

    |

  20. two concentric rings of radii r and 2rare placed with centre at origin...

    Text Solution

    |

  21. Find the electric field strength vector at the centre of a ball of rai...

    Text Solution

    |