Home
Class 12
PHYSICS
Two identical circular rings A and B of ...

Two identical circular rings A and B of radius 30 cm are placed coaxially with their axes horizontal in a uniform electric field `E. = 10^(5)N//C` directed vertically upward as shown in figure. Distance between centres ofthese rings A and B is40cm. Ring A has a positive charge `10muC` while ring B has a negative charge of magnitude `20muC`. A particle of mass `100g` and carrying a positive charge `10muC` is released from rest at the centre of the ring A. Calculate its velocity when it has moved a distanceof40cm. Take `g= 10m//s^(2)`

`[6 sqrt(2) m//s]`

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Partice Exercise 1.2|1 Videos

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Partice Exercise 1.3|1 Videos

  • ELECTROSTATICS

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

Two circular rings A and B, each of radius a = 30cm, are placed coaxiallywith their axes vertical as shown in figure -1 .456. Distance between centres of these rings is h = 40cm . Lower ring A has a positive charge of 10mu C, while upper ringB has a negative charge of 20muC. A particle of mass m = 100 gm carrying a positive charge of q =10mu C is released from rest at the centre of the ring ltbergt (a) Calculate initial acceleration of the particle. (b) Calculate velocity of particle when it reaches at the centre ofupper ring B. (g= 10 ms^(-2))

Two thin wire rings each having a radius R are placed at a distance d apart with their axes coiciding. The charges on the two rings are +q and -q . The potential difference between the centres of the two rings is

Find the electric field at the centre of a semicircular ring if it is uniformly positive charged.

Two positive point charges of 0.2 muC and 0.01 muC are placed 10 cm apart. Calculate the work done in reducing the distance to 5 cm.

Two charges +0.4 muC and -0.2 muC are placed on adjacent vertices of a square of side 10 cm. Another charge of 1.2muC is placed at the centre af the square Calculate the force and its direction in the charge kept in the centre .

A positive charge Q is uniformly distrubuted along a circular ring of radius R .a small test chage q is placed at the centre of the ring .The

A circular metal plate of radius 10 cm is given a charge of 20muC on its surface. The charge density of the plate is

A quarter ring of radius R is having uniform charge density lambda . Find the electric field and potential at the centre of the ring.

PHYSICS GALAXY - ASHISH ARORA-ELECTROSTATICS-Partice Exercise
  1. A positive charge Q is uniformly distributed throughout the volume of ...

    Text Solution

    |

  2. The electric potential at surface of thin non-conducting sheet with ch...

    Text Solution

    |

  3. Two identical circular rings A and B of radius 30 cm are placed coaxia...

    Text Solution

    |

  4. A non-conducting disc of radius a and uniform positive surface charge ...

    Text Solution

    |

  5. Determine the potential phi (x,y,z) of an electrostatic field vec(E) =...

    Text Solution

    |

  6. Find the potential difference between points a and b in and electric f...

    Text Solution

    |

  7. Consider a spherical surface of radius 4 m cenred at the origin. Point...

    Text Solution

    |

  8. A plastic rod has been formed into a circle of radius R. It has a posi...

    Text Solution

    |

  9. A ring of radius R is having two charges q and 2q distributed on its t...

    Text Solution

    |

  10. A spherical oil drop, radius 10^(-4) cm has on it at a certain a total...

    Text Solution

    |

  11. Three charges 0.1 coulomb each are placed on the corners of an equila...

    Text Solution

    |

  12. A system consists of two concentric spheres, with the inside sphere ...

    Text Solution

    |

  13. At the end points of a line sigment of a length of d = (sqrt(337))/(84...

    Text Solution

    |

  14. A conducting sphere S1 of radius r is attached to an insulating handle...

    Text Solution

    |

  15. A uniform disc of radius R is charged with a uniform surface charge de...

    Text Solution

    |

  16. A dielectric cylinder of radius a is infinitely long. It is non-unifor...

    Text Solution

    |

  17. In figure-, an electric dipole is placed at a distance x from an infin...

    Text Solution

    |

  18. Two point dipoles phat(k) and (P)/(2) hat(k) are located at (0, 0, 0)...

    Text Solution

    |

  19. Find the magnitude of the electric field at the point P in the configu...

    Text Solution

    |

  20. The graph in figure-shows the potential energy of an electric dipole t...

    Text Solution

    |