Home
Class 12
PHYSICS
A metallic wire PQ of length 1 cm moves ...

A metallic wire `PQ` of length `1 cm` moves with a velocity of `2 m//s` in a direction perpendicular to its length and perpendicular to a uniform magnetic field of magnitude `0.2 T`.Find the `emf` induced between the ends of the wire.Which end will be positively charged.

Text Solution

Verified by Experts

The correct Answer is:
D
`epsilon=BVL=0.2xx2xx10^(-2)` volt
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-1 PART 2|51 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-2 PART 1|15 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Problem|12 Videos

  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos

Similar Questions

Explore conceptually related problems

A conducting rod of unit length moves with a velocity of 5m/s in a direction perpendicular to its length and perpendicular to a uniform magnetic field of magnitude 0.4T . Find the emf induced between the ends of the stick.

A metallic meter stick moves with a velocity of 2m//sec in a diretion perpendicular to its length and perpendicular to a uniform magnetic firld of magnitude 0.2T . The emf induced between the ends of the stick

A metallic metre sitck moves with a velocity of 2 ms ^(-1) in a direction perpendicular to its length and perpendicular to a uniform magnetic field of magnitude 0.2 T. Find the emf indcued between the ends of the stick.

A straight conductor of length 1.5m moves in a uniform magnetic field of induction 5xx10^(-3)T with a velocity of 5m//s in a direction perpendicular to its length and also perpendicular to the field. The e.m.f. induced between the ends of the conductor is

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 wire of length 10cm translates in a direction making an angle of 60^@ with its length. The plane of motion is perpendicular ot a uniform magnetic field of 1.0 T that exists in the space. Find the emf induced between the ends of the rod if the speed of translation of 20 cm s^(-1).

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

A metal rod of length 2 m is rotating with an angualr velocity of 100 "rads"^(-1) in plane perpendicular to a uniform magnetic field of 0.3 T. The potential difference between the ends of the rod is

A metallic wire bent in the form of a semi-circle of radius 0.1 m is moved in a direction parallel to its plane, but perperdicular to a magnetic field B = 20 mT with a vel. Of 10 m//s . Find the e.m.f. induced in the wire.

A metallic metre stick translates in a direction making an angle of 60^(@) with its length.The plane of motion is perpendicular to a uniform magnetic field of 0.1 T that exists in the space.Find the emf induced between the ends of the rod if the speed of translation is 0.2 m//s .

RESONANCE-ELECTROMAGNETIC INDUCTION-Exercis-1
  1. Find the total heat produced in the loop of the previous problem durin...

    Text Solution

    |

  2. Two straight long parallel conductors are moved towards each other. A ...

    Text Solution

    |

  3. A metallic wire PQ of length 1 cm moves with a velocity of 2 m//s in a...

    Text Solution

    |

  4. A right angled triangle abc made of a metallic wire, moves at a unif...

    Text Solution

    |

  5. A metallic metre stick translates in a direction making an angle of 60...

    Text Solution

    |

  6. The two rails of a railway track, insulataed form each other and from...

    Text Solution

    |

  7. A circular copper ring of raidus r translates in its plane with a cons...

    Text Solution

    |

  8. A wire bent as a parabola y=ax^(2) is located in a uniformed magnetic ...

    Text Solution

    |

  9. A square frame of wire abcd of side 1 m has a total resistance of 4 Om...

    Text Solution

    |

  10. Consider the situation shown in figure.The wire CD has a negligible re...

    Text Solution

    |

  11. Figure showns a smooth pair of thick metallic rails connected across a...

    Text Solution

    |

  12. Figure shows a wire of resistance R sliding on two parallel, conductin...

    Text Solution

    |

  13. A long U-shaped wire of width l placed in a perpendicular uniform and ...

    Text Solution

    |

  14. Consider the situation of the pervious problem. (a) Calculate the forc...

    Text Solution

    |

  15. A wire of mass m and length l can slide freely on a pair of fixed, smo...

    Text Solution

    |

  16. Figure showns a fixed square frame of wire having a total resistance r...

    Text Solution

    |

  17. The magnetic field in a region is given by vecB=B(0)/Lxhatk where L is...

    Text Solution

    |

  18. A straight wire with a resistance of r per unit length is bent to form...

    Text Solution

    |

  19. A metal rod of length 15xx10^(-2)m rotates about an axis passing throu...

    Text Solution

    |

  20. In the figure there are two identical conducting rods each of length a...

    Text Solution

    |