Home
Class 12
PHYSICS
A wires PQRS carrying a current I runs a...

A wires PQRS carrying a current I runs along three edges of a cube of side l as shown in figure. There exists a uniform magnetic field of magnitude B along one of the sides of cube. The magnitude of the force acting on the wire is

A

zero

B

`sqrt(3)IB`

C

`sqrt(2I) lB`

D

2Ilb

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD AND FORCES

    DC PANDEY ENGLISH|Exercise Assertion and reason|20 Videos

  • MAGNETIC FIELD AND FORCES

    DC PANDEY ENGLISH|Exercise Match the following|4 Videos

  • MAGNETIC FIELD AND FORCES

    DC PANDEY ENGLISH|Exercise Check point|54 Videos

  • INTERFERENCE AND DIFFRACTION OF LIGHT

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|5 Videos

  • MAGNETICS

    DC PANDEY ENGLISH|Exercise MCQ_TYPE|1 Videos

Similar Questions

Explore conceptually related problems

A long wire carrie scurrent of 25 A parallel to the positive x axis, except for three of the four segments that follow the edges of a cube of side 0.4 m , as shown in figure. The wire is in a uniform magnetic field of 2.0T directed paralled to the positice x axis. What is the net magnetic force on the wire (in newton) ?

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 wire is bent to form the double loop shown in figure. There is a uniform magnetic field directed into the plane of the loop. If the magnitude of this field is decreasing current will flow from:

A wire carrying current i is bent as shown in figure and placed in the plane of uniform magnetic field Bvec. The magnitude of magnetic force experienced by

A wire carrying a current i is placed in a uniform magnetic field in the form of the curve y=asin((pix)/L)0 lexle2L . The force acting on the wire is

A current of I amperes is flowing through each of the bent wires as shown. Find the magnitude of magnetic field at O.

Figure shows an equilateral triangle ABC of side l carrying currents as shown, and placed in a uniform magnetic field B perpendicular to the plane of triangle. The magnitude of magnetic force on the triangle is

Figure shows an equilateral triangle ABC of side l carrying currents as shown, and placed in a uniform magnetic field B perpendicular to the plane of triangle. The magnitude of magnetic force on the triangle is

A wire loop carrying current I is placed in the x-y plane as shown in the figure. If an external uniform magnetic field vec(B)=B hat(i) is switched on, then the torque acting on the loop is

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

DC PANDEY ENGLISH-MAGNETIC FIELD AND FORCES-Taking it together
  1. A large metal sheet carries an electric current along its surface. Cu...

    Text Solution

    |

  2. Let current i=2A be flowing in each part of a wire frame as shown in F...

    Text Solution

    |

  3. A conducting stick of length 2L and mass m is moving down a smooth inc...

    Text Solution

    |

  4. A charge q is moving with a velocity v(1)=1hati m/s at a point in a ma...

    Text Solution

    |

  5. A square frame of side l carries a current produces a field B at its c...

    Text Solution

    |

  6. The magnetic field existing in a region is gicen by vecB =B0(1+(x)/(l)...

    Text Solution

    |

  7. Two straight infinitely long current carrying wires are kept along Z-a...

    Text Solution

    |

  8. In the following figure a wire bent in the form of a regular polygon o...

    Text Solution

    |

  9. A wires PQRS carrying a current I runs along three edges of a cube of ...

    Text Solution

    |

  10. The magnetic field at the centre of square of side a is

    Text Solution

    |

  11. A straight rod of mass m and lenth L is suspended from the identical s...

    Text Solution

    |

  12. A particle of specific chage q//m=piC//kg is projected from the origin...

    Text Solution

    |

  13. A charged particle enters into a uniform magnetic field with velocity ...

    Text Solution

    |

  14. A proton moving with a constant velocity passes through a region of sp...

    Text Solution

    |

  15. Figure shows three cases: in all case the circular part has radius r a...

    Text Solution

    |

  16. A non - popular loop of conducting wire carrying a current I is placed...

    Text Solution

    |

  17. A rectangular loop consists of N closed wrapped turns and has dimendio...

    Text Solution

    |

  18. A particle of charge -q and mass m enters a uniform magnetic field B (...

    Text Solution

    |

  19. A square coil of edge I having n turns carries a curent i. it is kept ...

    Text Solution

    |

  20. A long straight wire along the z- axis carries a current I in the neg...

    Text Solution

    |