Home
Class 12
PHYSICS
A straight metallic wire of length 1m, i...

A straight metallic wire of length 1m, is moving normally across a field of 0.1 T with a speed of `10 m//s`. What is the e.m.f. Induced between the ends of the wire?

A

0.5 V

B

0.75 V

C

1 V

D

2 V

Text Solution

Verified by Experts

The correct Answer is:
C
`e=Bvl=0.1 xx 10 xx 1 = 1V`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 16|30 Videos

  • ELASTICITY

    MARVEL PUBLICATION|Exercise Test Your Grasp - 5|15 Videos

  • ELECTRONS AND PHOTONS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 17|15 Videos

Similar Questions

Explore conceptually related problems

A conductor of 3 m in length is moving perpendicularly to magnetic field of 10^(-4) tesla with the speed of 10^(2)m//s , then the e.m.f. produced across the ends of conductor will be

A conducting wire of length 10 cm is moving perpendicular in a region of magnetic field 1 tesla with a speed of 10 m s^(-1) . Calculate the induced emf in the conductor.

A straight wire of length L is bent into a semicircle. It is moved in a uniform magnetic field with speed v with diameter perpendicular to the field. The induced emf between the ends of the wire is

A straight copper wire of length 0.45 m is perpendicular to a uniform magnetic field of induction 0.7 T. It is moved at right angles to its length at a speed of 2m/s. (i) Find the induced emf between the ends of the wire. (ii) If the ends of are joined by completing a circuit through a 4-ohm resistor, at what rate must be work be done to keep the wire moving at the constant speed of 2m/s ?

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

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.

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 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.

MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
  1. A straight metallic wire of length 1m, is moving normally across a fie...

    Text Solution

    |

  2. A coil having an area of 2m^(2) is placed in a magnetic field which ch...

    Text Solution

    |

  3. A straight conductor of length 2 is moves a velocity of 2 m//s, in a m...

    Text Solution

    |

  4. The magnetic flux passing perpendicular to the plane of a coil given b...

    Text Solution

    |

  5. Two identical circular loops of metal wire are lying on a table withou...

    Text Solution

    |

  6. A telegraph wire of length 2500m, is kept in E-W direction, at a heigh...

    Text Solution

    |

  7. When the current in a coil changes from 2A to 4A in 0.05 sec, the e.m....

    Text Solution

    |

  8. Two coil A and B are placed in a circuit. When current changes by 8 Am...

    Text Solution

    |

  9. Two coils P and S have a mutual inductance of 5 xx 10^(-3)H. If the cu...

    Text Solution

    |

  10. The primary and secondary voltage of an ideal step down transformer ar...

    Text Solution

    |

  11. A step down transformer has a turn ratio of 20 : 1. If 8 volt are deve...

    Text Solution

    |

  12. A step down transformer of efficiency 80% is used on a 1000V line to d...

    Text Solution

    |

  13. A coil 10 turns and area 10^(-2)m^(2) rotates in a magnetic field of 0...

    Text Solution

    |

  14. An alternating e.m.f. is given by E=10 cos omega t. If the frequency i...

    Text Solution

    |

  15. In an A.C. Circuit, the current is given by I=6 sin(200 pi t+(pi)/6)...

    Text Solution

    |

  16. An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit ...

    Text Solution

    |

  17. An alternating voltage is represented by V=80 sin(100 pi t)cos(100 p...

    Text Solution

    |

  18. In an A.C. circuit, E=100 sin (500 t) volt and I=1000 sin(500 t +(pi)/...

    Text Solution

    |

  19. In an A.C. circuit, a resistance R=40 Omega and an inductance L are c...

    Text Solution

    |

  20. The inductance of a coil is 10 H. What is the ratio of its reactance w...

    Text Solution

    |

  21. For tuning radio and T.V. circuits, series resonance circuits are used...

    Text Solution

    |