Home
Class 12
PHYSICS
Two identical conducting rings A and B o...

Two identical conducting rings `A` and `B` of radius `R` are rolling over a horizontal conducting plane with same speed `v` but in opposite direction. A constant magnetic field `B` is present pointing into the plane of paper. Then the potential difference between the highest points of the two rings is

A

0

B

`2 BnuR`

C

`4 BnuR`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
`V_2-V_1=1/2 Bomega(2R)^2=2BR(omegaR)=2BRv`

`V_3-V_4=2BRv`
but `V_1=V_3, rArr V_2-V_4=4BRv`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-3|24 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-4|16 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-2 (C.W)|22 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL-II(H.W)|14 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -4|15 Videos

Similar Questions

Explore conceptually related problems

Two identical conducing ring A and B of radius R are in pure rolling over a horizontal conducing plane with same speed (of center of mass) v but in opposite direction. A constant magnetic field B is present pointing inside the plane of paper. Then the potential difference between the highest points of the two rings, is:

Two conducting rings of radii r and 2r move in apposite directions with velocities 2 upsilon and upsilon respectively on a conducting surface S . There is a uniform magnetic field of magnitude B perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is

A conducting ring of radius 2R rolls on a smooth horizontal conducting surface as shown in figure-5.295. A uniform horizontal magnetic field B is perpendicular to the plane of the ring. The potential of A with respect to O is:

Two rings of radii 5m and 10m move in opposite directions with velocity 20 m/s and 10 m/s respectively, on a conducting curface S. There is a uniform magnetic field of magnitude 0.1T perpendicular to the plane of the rings. Find the potential difference between the highest points of the two rings.

A ring of radius R is rolling on a horizontal plane with constant velocity v. There is a constant and uniform magnetic field B which is perpendicular to the plane of the ring. Emf across the lowest point A and right-most point C as shown in the figure will

A vertical conduction ring of radius R falls vertically in a horizontal magnetic field of magnitude B with constant speed v . The direction of B is perpendicular to the plane of the ring. When the speed of the ring is v , (i) A and D are at different potential (ii) A and D are at the same potential (iii) C and E are at the same potential (iv) The potential difference between A and D is 2BRv , with D a higher potential

Two metallic rings of radius R are rolling on a metalilc rod. A magnetic fied of magnitude B is applied in the region. The magnitude of potential difference between points A and C on the two rings (as shown) , will be

A circular conducting ring of radius 'a' is rolling with slipping on a horizontal surface as shown. A uniform magnetic field B is existing perpendicular to the plane of motion of the ring. The emf iniduced between the points A and D of the ring is

NARAYNA-ELECTROMAGNETIC INDUCTION-EXERCISE-2 (H.W)
  1. A coil of 30 turns of wire each of 10 cm^(2) area is placed with its p...

    Text Solution

    |

  2. A square coil of side 0.5 m has movable sides. It si placed such that ...

    Text Solution

    |

  3. A uniform magnetic field existsin region given by vec(B) = 3 hat(i) + ...

    Text Solution

    |

  4. Two identical conducting rings A and B of radius R are rolling over a ...

    Text Solution

    |

  5. A flexible wire loop in the shape of a circle has a radius that grows ...

    Text Solution

    |

  6. A rectangle loop with a sliding connector of length l=1.0 m is situate...

    Text Solution

    |

  7. A straight rod of length l si rotating about axis passing through O is...

    Text Solution

    |

  8. A rod of length 10 cm made up of conducting and non-conducting materia...

    Text Solution

    |

  9. A triangular wire frame (each side =2m) is placed in a region of time ...

    Text Solution

    |

  10. A uniform magnetic field of induction B is confined to a cyclindrical ...

    Text Solution

    |

  11. The e.m.f. induced in a secondary coil is 20000 V when the current bre...

    Text Solution

    |

  12. A small square loop of wire of side l is placed inside a large square ...

    Text Solution

    |

  13. A straight solenoid of length 1 m has 5000 turns in the primary and 20...

    Text Solution

    |

  14. Two coaxial circular loops of radius 0.5 m and 5 xx 10^(-2)m are separ...

    Text Solution

    |

  15. The mutual inductance between the rectangular loop and the long straig...

    Text Solution

    |

  16. An infinite long straight conducting cylinderical shell of radius a is...

    Text Solution

    |