Home
Class 12
PHYSICS
A conducting rod of length l falls verti...

A conducting rod of length `l` falls verticaly under gravity in a region of uniform magnetic field `B`. The field vectors are inclined at an angle `theta` with the horizontal as shown in figure. If the instantaneous velocity of the rod is `v`, the induced emf in the rod ab is

A

Blv

B

Blv `cos theta`

C

Blc `sin theta`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Numerical MCQs|60 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

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

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Discussion Question-|21 Videos

  • CURRENT ELECTRICITY

    PHYSICS GALAXY - ASHISH ARORA|Exercise All Questions|389 Videos

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numberical Problems|73 Videos

Similar Questions

Explore conceptually related problems

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __

A rod AB is placed on smooth inclined plane as shown in the figure. At the instant which is shown in the figure, the angular velocity of the rod is

A glass rod of length l moves with velocity in a uniform magnetic field B. What is the e.m.f. induced in the rod ?

A conducting rod AB of lemgth 2 l moves through a uniform magnetic field B. The rod makes an angle theta with the vertical while it falls with a uniform linear velocity v. The potential difference between the two ends of the rod is Bv^(2)l .

A conducing rod of length l is falling with a velocity v perpendicular to a unifrorm horizontal magnetic field B . The potential difference between its two ends will be

A rod AB moves with a uniform velocity v in a uniform magnetic field as shown in figure.

A metal rod of length I is moved with velocity v in a uniform magnetic field vec B . Emf is induced between the two ends of rod

PHYSICS GALAXY - ASHISH ARORA-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT-Conceptual MCQs
  1. The ring B is coaxial with a solenoid A as shown in figure. As the swi...

    Text Solution

    |

  2. Magnetic permeability is maximum for

    Text Solution

    |

  3. A conducting rod of length l falls verticaly under gravity in a region...

    Text Solution

    |

  4. The figure shows a conducting ring of radius R. A uniform steady magne...

    Text Solution

    |

  5. A metallic rod of length l is hinged at the point M and is rotating ab...

    Text Solution

    |

  6. At Curie point, a ferromagnetic material transforms into:

    Text Solution

    |

  7. A conducting rod is moving with a constant velocity v over the parall...

    Text Solution

    |

  8. A rod is rotating with a constant angular velocity omega about point O...

    Text Solution

    |

  9. A straight conductig rod PQ is executing SHM in xy-plane from x=-d to ...

    Text Solution

    |

  10. A wire is bent in the form of a V shape and placed in a horizontal pl...

    Text Solution

    |

  11. In the circuit shown in the figure initialy the switch in position 1 f...

    Text Solution

    |

  12. When the switch S is closed at t=0, indentify the correct statement ju...

    Text Solution

    |

  13. If a diamagnetic solution is poured into a U-tube and one aem of this ...

    Text Solution

    |

  14. Rate of increment of energy in an inductor with time in series RL circ...

    Text Solution

    |

  15. A current flows through a rectangular conductor in the presence of uni...

    Text Solution

    |

  16. Three coaxial circular wire loops and a stationary observer are positi...

    Text Solution

    |

  17. A uniform and constant magnetic field B is directed perpendicularly in...

    Text Solution

    |

  18. A short-circuited coil is placed in a time-varying magnetic field. Ele...

    Text Solution

    |

  19. A conducting ring is placed around the core of an electromagnet as sho...

    Text Solution

    |

  20. The north and south poles of two indential magnets approach a coil, co...

    Text Solution

    |