Home
Class 12
PHYSICS
The wire as shown in figure is bent in t...

The wire as shown in figure is bent in the shape of a tent, with `theta=60^(@)` and `L=1.50m` and is placed in a uniform magnetic field of magnitude `0.300T` perpendicular to the table rigid but hinged at points `a` and `b`. If the tent is flattened out on the table in `0.100` sec, then

A

Average induced emf in the wire during this time is`6.75V`

B

Average induced emf in the wire during this time is clockwise (as seen from top)

C

Average induced emf in the wire during this time is anticlockwise (as seen from top)

D

Average induced emf in the wire during this time is `2.75V`

Text Solution

Verified by Experts

NA
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE|Exercise FST-3|30 Videos

  • TRAVELLING WAVES

    RESONANCE|Exercise Exercise- 3 PART II|7 Videos

Similar Questions

Explore conceptually related problems

The wire shown in is bent in the shape of a tent, with theta = 60.0^(@) and L = 1.50 m , and placed in a uniform magnetic field of magnitude 0.300 T perpendicular to the tabletop. The wire is rigid but hinged at points a and b . If the tent is flattened out on the table in 0.100 s , what is the average induced emf in the wire during this time?

A wire PQR carrying a current l is bent as shown in the figure. It is placed in a uniform magnetic field B. What is the ratio of magnitude of the force on PQ to that on QR ?

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A flexible wire bent in the form of a circle is placed in a uniform magnetic field perpendicular to the plane of the coil. The radius of the coil changing as shown in figure. The graph of induced emf in the coil is represented by

A straight wire of length 1 m, and carrying a current of 1.8 A, is placed in a uniform magnetic field of induction 2T. If the magntic field is perpendicular to the length of the wire, then the force acting on the wire is

A circular loop of radius 0*2m carrying a current of 1A is placed in a uniform magnetic field of 0*5T . The magnetic field is perpendicular to the plane of the loop. What is the force experienced by the loop?

A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire , the force acting on the wire is

A semicircular wire of radius 5.0 cm carries a current of 5.0 A. A magnetic field B of magnitude 0.50 T exists along the perpendicular to the plane of the wire. Find the magnitude of the magnetic force acting on the wire.

A square of side 2.0 m is placed in a uniform magnetic field B=2.0 T in a direction perpendicular to the plane of the square inwards. Equal current i=3.0 A is flowing in the directions shown in figure. Find the magnitude of magnetic force on the loop.

RESONANCE-TEST SERIES-PHYSICS
  1. Two wires have identical lengths and areas of cross-section are suspen...

    Text Solution

    |

  2. The magnetic flux (phi) linked with the coil depends on time t as phi=...

    Text Solution

    |

  3. The wire as shown in figure is bent in the shape of a tent, with theta...

    Text Solution

    |

  4. Two smooth spheres A and B of masses 4kg and 8kg move with velocities ...

    Text Solution

    |

  5. A string is holding a solid block below the surface of the liquid as s...

    Text Solution

    |

  6. Four identical paltes (equally spaced) and a battery are connected as ...

    Text Solution

    |

  7. A uniform rigid body, (mass M(1) Radius R) with circular cross-section...

    Text Solution

    |

  8. Figure shows a container filled with a liquid of density rho. Four poi...

    Text Solution

    |

  9. Two isotropic blocks A and B are placed as a shown in the figure and a...

    Text Solution

    |

  10. A metallic V shaped rod OAC is rotated with respect to one of its end ...

    Text Solution

    |

  11. A conducting loop rotates with constant angular velocity about its fix...

    Text Solution

    |

  12. If the resultant force on a system of particles is non-zero, then:

    Text Solution

    |

  13. Two identical balls P and Q moving in the x-y plane collide at the ori...

    Text Solution

    |

  14. A ball of mass 1 kg is thrown up with an initial speed of 4 m//s. A se...

    Text Solution

    |

  15. A prism shaped styrofoam of density rho(styrofoam) (ltrho(water)) is ...

    Text Solution

    |

  16. A prism shaped styrofoam of density rho(styrofoam) (ltrho(water)) is h...

    Text Solution

    |

  17. A long straight wire having uniform resistance per uni length lamda (o...

    Text Solution

    |

  18. A long straight wire having uniform resistance per uni length lamda (o...

    Text Solution

    |

  19. Consider a long solenoid of radius R which has n turns per unit length...

    Text Solution

    |

  20. A particle with mass m and charge q moving with a velocity v, enters a...

    Text Solution

    |