Home
Class 12
PHYSICS
A wire of length 'L' is bent in to an ar...

A wire of length `'L'` is bent in to an arc of a circle and found to subtentd and angle of `'theta'` radians at the centre.If a current of `'I'` is passed through it, the magnetic induction at the center of the circle is

A

`(mu_(0)itheta^(2))/(2piL)`

B

`(mu_(0)itheta^(2))/(4piL)`

C

`(mu_(0)itheta)/(4piL)`

D

`(mu_(0)itheta)/(2piL)`

Text Solution

Verified by Experts

The correct Answer is:
2
`B=(mu_(0)itheta)/(4pir),L=rtheta`
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 wire of length 10cm is bent into an arc of a circle such that it subtends an angle of 1 radian at the centre. If a current of 1A is passed through the wire, the magnetic induction at the centre of the circle will be

A circular arc of wire of radius of curvature r subtends an angle of p/4 radian at its centre. If i current is flowing in it then the magnetic induction at its centre is -

A magnetised wire of moment M is bent into an arc of a circle subtending an angle of 60^(@) at the centre. The new magnetic moment is

Two wires A and B are of lengths 40cm and 30cm . A is bent into a circle of radius r and B into an arc of radius r . A current i_(1) is passed through A and i_(20) through B . To have the same magnetic inductions at the centre, the ratio of i_(1):i_(2) is

A uniform wire of length L is bent in the form of a circle.The shift in its centre of mass is

A piece of wire of length 33 cm is bent into an arc of a circle of radius 14 cm. What is the angle subtended by the arc at the centre of the circle ?

An arc of length of length 19 cm of a circle of radius 30 cm, subtends an angle theta at the centre O. Then value of theta is:

An arc of length of length 19 cm of a circle of radius 30 cm, subtends an angle theta at the centre O. The value of theta is:

Two identical wires each of length L are bent to form a circular loop and a square loop. If the same current i flows in the two wires, then the ratio of the magnetic inductions at the centre of the circular and square loops is :

A wire of length L carrying a current I is bent into a circle. The magnitude of the magnetic field at the centre of the circle is

NARAYNA-MOVING CHARGES AND MAGNETISM-LEVEL-III
  1. The magnetic induction at O due to a current in conductor shaped as sh...

    Text Solution

    |

  2. A wire is bent in the form of a circular arc with a straight portion A...

    Text Solution

    |

  3. A wire of length 'L' is bent in to an arc of a circle and found to sub...

    Text Solution

    |

  4. A wiere of length L is shaped into a cricle and then bent in such a wa...

    Text Solution

    |

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

    Text Solution

    |

  6. A circular coil of 100 turns and effective diameter 20cm carries a cur...

    Text Solution

    |

  7. A long solenoid has 200 turns per cm and carries a current i. The magn...

    Text Solution

    |

  8. Find the magnetic induction at point O if the current carrying wire is...

    Text Solution

    |

  9. Two circular coils P and Q are made from similar wire but radius of Q ...

    Text Solution

    |

  10. A charged particle of charge 5mc and mass 5 gm is moving with a consta...

    Text Solution

    |

  11. Velocity and acceleration vectors of a charged particle moving in a ma...

    Text Solution

    |

  12. A charged particle enters a magnetic field at right angles to the fiel...

    Text Solution

    |

  13. A particle of mass mand charge q, moving with velocity v enters Region...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |