Home
Class 12
PHYSICS
A uniform conducting ring of mass pi kg ...

A uniform conducting ring of mass `pi` kg and radiius 1m is kept on a smooth horizontal table, A uniform but time varying magnetic field T is present in the region where is in second and the positive y-axis is in vertically upward direction, `(g=10m//s^(2))`. Resistance of the ring in `2Omega`.

Heat generated in the rings up to the instant when rings starts toppling is

A

`1/(3pi)kJ`

B

`2/(pi)kJ`

C

`2/(3pi)kJ`

D

`1/(pi)kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
Heat generated
`H=int_(0)^(10//pi) I^(2)Rd=int_(0)^(10//pi) pi^(2)t^(2)xx2xxdt`
`=2000/(3pi)J=2/(3pi)kJ`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PART - II PHYSICS|106 Videos

  • SIMPLE HARMONIC MOTION

    RESONANCE ENGLISH|Exercise Advanced Level Problems|13 Videos

  • TEST SERIES

    RESONANCE ENGLISH|Exercise PHYSICS|130 Videos

Similar Questions

Explore conceptually related problems

A uniform conducting ring of mass pi kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field B = (hat (i) + t^(2) hat (j))T is present in the region, where t is time in seconds. Resistance of ring is 2 (Omega) . Then Heat generated (in kJ) through the ring till the instant when ring start toppling is

A uniform conducting ring of mass pi kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field B = (hat (i) + t^(2) hat (j))T is present in the region, where t is time in seconds. Resistance of ring is 2 (Omega) . Then Time (in second) at which ring start toppling is

A uniform conducting ring of mass pi kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field B = (hat (i) + t^(2) hat (j))T is present in the region, where t is time in seconds. Resistance of ring is 2 (Omega) . Then Time (in second) at which ring start toppling is

A uniform conducting ring of mass pi kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field B = (hat (i) + t^(2) hat (j))T is present in the region, where t is time in seconds. Resistance of ring is 2 (Omega) . Then Net Induced EMF (in Volt) on conducting ring as function of time is

A uniform conducting ring of mass m=2kg , radius r=2m and resistance 8Omega is kept on smooth, horizontal surface. A time varying magnetic field vecB=(hati+t^(2)hatj) Tesla is present in the region, where t is time in second and take vertical as y -axis. (Take pi^(2)=10 ). Then

A conducting ring of mass 2kg and radius 0.5m is placed on a smooth plane. The ring carries a current of i=4A . A horizontal magnetic field B=10 T is switched on at time t=0 as shown in fig The initial angular acceleration of the ring will be .

A conducting ring of mass 2kg and radius 0.5m is placed on a smooth plane. The ring carries a current of i=4A . A horizontal magnetic field B=10 T is switched on at time t=0 as shown in fig The initial angular acceleration of the ring will be .

A conducting ring of mass 2kg, radius 0.5m carries a current of 4A. It is placed on a smooth horizontal surface. When a horizontal magnetic field of 10 T parallel to the diameter of the ring is applied, the initial acceleration is (in rad/se c^(2) )

A uniform current carrying ring of mass m and radius R is connected by a massless string as shown in Fig. 1.142. A uniform magnetic field B_0 exists in the region to keep the ring in horizontal position, then the current in the ring is (l=length of string) .

A reacangular loop if size (2m xx 1m) is placed in x-y plane. A uniform but time varying magnetic field of strength T where t is the time elsapsed in second exists in sosace. The magnitude of induced emf (in V) at time t is

RESONANCE ENGLISH-TEST PAPERS-PHYSICS
  1. A particle of mass m is projected up from the bottom of an inclined pl...

    Text Solution

    |

  2. A uniform conducting ring of mass pi kg and radiius 1m is kept on a sm...

    Text Solution

    |

  3. A uniform conducting ring of mass pi kg and radiius 1m is kept on a sm...

    Text Solution

    |

  4. One mole of helium gas follows the cycle 1-2-3-1 shown in the diagram....

    Text Solution

    |

  5. One mole of helium gas follows the cycle 1-2-3-1 shown in the diagram....

    Text Solution

    |

  6. Bottom of a glass beaker is made of a thin equi-convex lens having bot...

    Text Solution

    |

  7. Assume that a frictionless tunnel is made in the earth along its diame...

    Text Solution

    |

  8. Consider a long cylindrical wire carrying current along the axis of wi...

    Text Solution

    |

  9. An open organ pipe is vibrating in its fifth overtone. The distance be...

    Text Solution

    |

  10. A uniform rod of mass 3 m and length l is lying on a smooth horizontal...

    Text Solution

    |

  11. A ring of mass m and radius r rolls without slipping on a fixed hemisp...

    Text Solution

    |

  12. When the voltage applied to an X-ray tube increased from V(1)=15.5kV t...

    Text Solution

    |

  13. Eight identical resistance each 15Omega are connected along the edge o...

    Text Solution

    |

  14. Two strings A and B are connected together end to end as shown in the ...

    Text Solution

    |

  15. A spherical tank of radius 0.35m is half filled with oil of relative d...

    Text Solution

    |

  16. Observer A is at rest. Source S(1) is moving towards observer A and so...

    Text Solution

    |

  17. A block of mass 1 kg is given horizontal velocity v(0)=10sqrt(3)(m)/(s...

    Text Solution

    |

  18. There is an infinite line of uniform linear density of charge +lamda. ...

    Text Solution

    |

  19. In the adjacent figure, a uniform cube of mass m and edge l=2m is lyin...

    Text Solution

    |

  20. Figure shows elliptical path ‘abcd’ of a planet around the sun S such ...

    Text Solution

    |