Home
Class 12
PHYSICS
The magnitude of the earth's magnetic fi...

The magnitude of the earth's magnetic field at a place is `B_(0)` and angle of dip is `delta.` A horizontal conductor of lenth/lying along the magnetic north-south moves eastwards with a velocity v. The emf induced acroos the coductor is

A

zero

B

`B_(0)lv`

C

`B_(0)lvsindelta`

D

`B_(0)lvcosdelta`

Text Solution

Verified by Experts

The correct Answer is:
C

Here `B` and `l` are parallel
`e=0` .
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CP SINGH|Exercise EXERCISES|141 Videos
  • CURRENT ELECTRICITY

    CP SINGH|Exercise Exercise|137 Videos
  • ELECTROMAGNETIC WAVES

    CP SINGH|Exercise EXERCISES|21 Videos

Similar Questions

Explore conceptually related problems

The vartical component of the earth's magnetic field is zero at a place where the angle of dip is

Calculate earth's magnetic field at a place where angle of dip delta is 60^(@) and horizontal component of earth's magnetic field is 0.3 G

The magnitude of the earth's magnetic field at the north pole is B_(0) . A horizontal conductor of length l moves with a velocity v . The direction of v is perpendicular to the conductor. The induced emf is (i) zero, if v is vertical (ii) B_(0)lv , if v is vertical (iii) zero, if v is horizontal (iv) B_(0)lv , if v is horizontal

At a perpendicular place on the earth, the horizontal component of earth's magnetic field of B, and the angle of dip is theta . A striaght meridian and is moved horizontally perpendicular to its length with a velocity v. The emf induced across the rod is

The horizontal component of the earth's magnetic field at a place is 3xx10^(-4)T and the dip is tan^(-1)((4)/(3)) . A metal rod of length 0.25m placed in the north -south position and is moved at a constant speed of 10cm//s towards the east. The emf induced in the rod will be

The horizontal compound of the earth's magnetic field at a given place is 0.4xx10^(-4) Wb//m^(2) and angle of dip =30^(@) . What is the total intensity of the earth's magnetic field at that place?

The horizontal component of the earth's magnetic field at a place is 4.0xx10^(-4) T and the dip is 45^(@) . A metal rod of length 20 cm is placed in the north-south direction and is moved at a constant speed of 5 cm/s towards east. Calculate the emf induced in the rod.

CP SINGH-ELECTROMAGNETIC INDUCTION-EXERCISES
  1. The wings of an aeroplane are I0m apart. The plane is moving horizonta...

    Text Solution

    |

  2. The two rails of a railway track, insulated from each other and the gr...

    Text Solution

    |

  3. The magnitude of the earth's magnetic field at a place is B(0) and an...

    Text Solution

    |

  4. In the precious question, if the conductor lies east-west and the move...

    Text Solution

    |

  5. The two ends of a horizontal conducting rod of length l are joined to ...

    Text Solution

    |

  6. A player with 3 meter long iron rod runs toward east with a speed of ...

    Text Solution

    |

  7. The magnitude of the earth's magnetic field at the north pole is B(0) ...

    Text Solution

    |

  8. A wire of length 10cm translates in a direction making an angle of 60^...

    Text Solution

    |

  9. The loop shown moves with a velocity v in a uniform magnetic field of ...

    Text Solution

    |

  10. A metallic square loop ABCD is moving in its own plane with velocity v...

    Text Solution

    |

  11. A conducting square loop of side l and resistance R moves in its plane...

    Text Solution

    |

  12. A right angled triangle abc, made from a metallic wire, moves at a uni...

    Text Solution

    |

  13. A square loop ABCD of edge a moves to the right with a velocity v para...

    Text Solution

    |

  14. In the previous question, in position I of the loop (i) The induced ...

    Text Solution

    |

  15. Shown a square loop of side 5 cm beign moved towards right at a consta...

    Text Solution

    |

  16. Find the total heat produced in the loop of the previous problem durin...

    Text Solution

    |

  17. A rectangular frame of wire abcd has dimensions 1mxx 0.5m and a total ...

    Text Solution

    |

  18. shows a conducting loop being pulled out of a magnetic field with a sp...

    Text Solution

    |

  19. Consider the situation shown in . The wire AB is slid on the fixed rai...

    Text Solution

    |

  20. A vertical ring of radius r and resistance on R falls vertically. It i...

    Text Solution

    |