Home
Class 12
PHYSICS
A circular loop of radius R=20 cm is pla...

A circular loop of radius `R=20` cm is placed in a uniform magnetic field `B=2T` in `xy`-plane as shown in figure. The loop carries a current `i=1.0 A` in the direction shown in figure. Find the magnitude of torque acting on the loop.

A

`0.25N-m`

B

`(0.25)/(sqrt(2))N-m`

C

`0.75N-m`

D

`(0.75)/(sqrt(2))N-m`

Text Solution

Verified by Experts

The correct Answer is:
1

`vec(tau)=vec(M)xxvec(B)`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise NCERT Based Questions|20 Videos
  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise LEVEL-V (SINGLE ANSWER QUESTION)|85 Videos
  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise Level-II(C.W)|63 Videos
  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos
  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 Videos

Similar Questions

Explore conceptually related problems

A current carrying circular loop of radius R is placed in a uniform magnetic field B_(0) Tesla in x-y plane as shown in figure. The loop carries a current i = 1A in the direction shown. Find the torqure acting on the loop

A current carrying loop of radius R and mass 'm' is placed inside a uniform magnetic field an shown

A square loop of side l carries a current i. it is placed as shown in figure. Find the magnetic moment of the loop.

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.

A cicular current loop of radius a is placed in a radial magnetic field B as shown . The net force acting of the loop is :

In the figure shown a semicircular wire loop is placed in a uniform magnetic field B=1.0T . The plane of the loop is perpendicular to the magnetic field. Current i=2A flows in the loop in the directions shown. Find the magnitude of the magnetic force in both the cases a and b . The radius of the loop is 1.0 m

A square loop OABCO of side of side l carries a current i . It is placed as shown in figure. Find the magnetic moment of loop.

A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

A conducting loop carrying a current I is placed in a uniform magnetic field ponting into the plane of the paper as shown. The loop will have a tendency to

A current carrying squre loop is placed near an infinitely long current carrying wire as shown in figure . The loop torque acting on the loop is

NARAYNA-MOVING CHARGES AND MAGNETISM-LEVEL-III
  1. A particle of mass mand charge q, moving with velocity v enters Region...

    Text Solution

    |

  2. A proton accelerated by a potential difference 500 KV moves though a ...

    Text Solution

    |

  3. Two identical charged particles enter a uniform magnetic field with sa...

    Text Solution

    |

  4. An electron whose e//m is 1.76X10^(11)c//kg enter a region 2X10^(-3) t...

    Text Solution

    |

  5. Two charged particles traverse identical helical paths in a completely...

    Text Solution

    |

  6. For a positively charged particle moving in a x-y plane initially alon...

    Text Solution

    |

  7. A metallic block carrying current I is subjected to a uniform magneti...

    Text Solution

    |

  8. Two parallel beams of protons and electrons, carrying equal currents a...

    Text Solution

    |

  9. Three very long straight conductors are arranged parallel to each othe...

    Text Solution

    |

  10. Two long wires are placed parallel to each other 10cm apart as shown i...

    Text Solution

    |

  11. Two long parallel wires are at a distance 2d apart. They carry stead...

    Text Solution

    |

  12. A circular loop of radius R=20 cm is placed in a uniform magnetic fiel...

    Text Solution

    |

  13. A non conducting disc of radius R, charge q is rotating about an axis ...

    Text Solution

    |

  14. A galvanometer of resistance 5 Omega is connected in series with a re...

    Text Solution

    |

  15. A thin wire of length L is made of an insulating material. The wire is...

    Text Solution

    |

  16. A rigid circular loop of radius r & mass m lies in the xy plane on a f...

    Text Solution

    |

  17. A hollow sphere has charge 'q' which is uniformly distributed over its...

    Text Solution

    |

  18. A loop carrying current I lies in the x-y plane as shown in the figu...

    Text Solution

    |

  19. Electric field strength bar(E)=E(0)hat(i) and magnetic induction bar(B...

    Text Solution

    |

  20. A long current carrying wire, carrying current such that it is flowing...

    Text Solution

    |