Home
Class 12
PHYSICS
A wire of arbitrary shape carries a curr...

A wire of arbitrary shape carries a current I = 2 A. Consider the portion of wire between (0,0,0 ) and (4,4,4 ) . A magnetic filled given by `vec(B) . = ( 12 xx 10^(-4)hat i + 2 xx 10^(-4)hat hatj)` T exists in and region . The force acting on the given portion the wire is

A

`vecF=[(hati+hatj+hatk)xx(12hati+12hatj)]N`

B

`vecF=8xx10^(-4)[(hati+hatj+hatk)xx(12hati+12hatj)]N`

C

Zero

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 70

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET SET 72

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A wire carrying a 10 A current is bent to pass through sides of a cube of side 10 cm as shown in figure. A magnetic field vec(B) = (2 hat(i) - 3 hat(j) +hat (k))T is present in the region. Then, find The net force on the loop

A wire carrying a 10 A current is bent to pass through sides of a cube of side 10 cm as shown in figure. A magnetic field vec(B) = (2 hat(i) - 3 hat(j) +hat (k))T is present in the region. Then, find The magnetic moment vector of the loop.

A wire carrying a 10 A current is bent to pass through sides of a cube of side 10 cm as shown in figure. A magnetic field vec(B) = (2 hat(i) - 3 hat(j) +hat (k))T is present in the region. Then, find The net torque on the loop

A current of 1A is flowing along positive x-axis through a straight wire of length 0.5m placed in a region of a magnetic field given by vec(B)= (2 hat(i) + 4hat(j)) T. The magnitude and the direction of the force experienced by the wire respectively are

A wire lying along y-axis from y=0 to y=1 m carries a current of 2mA in the negative y-direction. The wire lies in a non uniform magnetic fiedl given by B=(0.3T/m)yhati +(0.4Tm)yhatj . The magnetic force on the entire wire is

A wire of iength I carries a current along the x-axis. A magnetic field B=B_0(hatj+hatk) exists in the space. Find the magnitude of the magnetic force acting on the wire.

A uniform magnetic field vec(B) = B_(0) hat(k) exists in a region. A current carrying wire is placed in x-y plane as show. Find the force acting on the wire AB, if each section of the wire is of length 'a'.

NTA MOCK TESTS-NTA NEET SET 71-PHYSICS
  1. If 50 cal of heat is supplied to the system containing 2 mol of an ide...

    Text Solution

    |

  2. A bar magnet is cut into two equal halves by a plane parallel to the m...

    Text Solution

    |

  3. A wire of arbitrary shape carries a current I = 2 A. Consider the port...

    Text Solution

    |

  4. The ratio of the magnetic fields due to small bar magnet in end positi...

    Text Solution

    |

  5. A stone is released from an aeroplane which is rising with upward acce...

    Text Solution

    |

  6. An artillary piece which consistently shoots its shells with the same ...

    Text Solution

    |

  7. A rod length AB is moving with ends remaining in contact with friction...

    Text Solution

    |

  8. A block of mass 1 kg lies on a horizontal surface in a truck. The coef...

    Text Solution

    |

  9. An alpha particle of energy 5 MeV is scattered through 180^(@) by a fo...

    Text Solution

    |

  10. The half-life of a radioactive sample is T. If the activities of the s...

    Text Solution

    |

  11. The length of a magnet is large compared to its width and breadth. The...

    Text Solution

    |

  12. In a simple pendulum, the breaking strength of the string is double th...

    Text Solution

    |

  13. A metallic surface ejects electrons when exposed to green light of int...

    Text Solution

    |

  14. Light of energy 2.0 eV falls on a metal of work function 1.4 eV . The ...

    Text Solution

    |

  15. Hydraulic lift' works on the basis of

    Text Solution

    |

  16. In hydraulic prees radii of connecting pipes , r1 And r2 in ratio 1...

    Text Solution

    |

  17. An object is placed at a distance of 20 cm from the pole of a concave ...

    Text Solution

    |

  18. Time taken by the sunlight to pass thought a slab of 4 cm and reflecti...

    Text Solution

    |

  19. A solid ball rolls down a parabolic path ABC from a height h as shown ...

    Text Solution

    |

  20. A circular disc rolls down an inclined plane . The ratio of rotational...

    Text Solution

    |