Home
Class 12
PHYSICS
A rod of length 10 cm made up of conduct...

A rod of length `10 cm` made up of conducting and non-conducting material (shaded part is non-conducting). The rod is rotated with constant angular velocity `10 rad//s` about point `O`, in constant magnetic field of `2 T` as shown in the figure. The induced `emf` between the point `A` and `B` of rod will be:

A

0.029 V

B

0.1 V

C

0.051 V

D

0.064 V

Text Solution

Verified by Experts

The correct Answer is:
C

`e=Bomegaint_7^(10)x dx =0.051V`
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

A conducting rod of length l is rotating with constant angular velocity omega about point O in a uniform magnetic field B as shown in the figure . What is the emf induced between ends P and Q ?

A non-conducting disk of radius R is rotating about its own axis with constant angular velocity omega in a perpendicular uniform magnetic field B as shown in figure. The emf induced between centre and rim of disk is

A rod is rotating with a constant angular velocity omega about point O (its centre) in a magnetic field B as shown. Which of the folloiwng figure correctly shows the distribution of charge inside the rod?

A metal rod of length 2 m is rotating with an angular velocity of 100 rad//sec in a plane perpendicular to a uniform magnetic field of 0.3 T . The potential difference between the ends of the rod is

A conducting rod of 1m length rotating with a frequency of 50 rev/sec. about its one of end inside the uniform magnetic field of 6.28 mT. The valu of induced emf between end of rod is :-

A conducting rod of length 2l is rotating with constant angular speed w about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The e.m.f. induced between two ends of the rod is

When a 'j' shaped conducting rod is rotating in its own plane with constant angular velocity omega about one of its ends P in a uniform magnetic field rarr B ( directed normally into the plane of paper ) the magnitude of emf induced across it will be

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

    |