Home
Class 12
PHYSICS
A conducting circular loop of radius a i...

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.

Text Solution

Verified by Experts

Magnetic field at P due to each straight wire is zero. B due ot ABC and ADC at P is equal in magnitude but opposite in direction. Hence net `B atP = O`.
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD DUE TO CURRENT

    HC VERMA|Exercise Objective 2|7 Videos

  • MAGNETIC FIELD

    HC VERMA|Exercise Exercises|61 Videos

  • MAGNETIC PROPERTIES OF MATTER

    HC VERMA|Exercise Exercises|9 Videos

Similar Questions

Explore conceptually related problems

A current carrying wire AB of the length L is turned along a circle, as shown in figure. The magnetic field at the centre O.

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 35 cm from the wire ?

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

A circular coil of wire consisting of 100 turns, each of radius 4.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil ?

A straight wire carrying a current of 12 A is bent into a semicircular arc of radius 2.0 cm as shown in figure (a). Consider the magnetic field vecB at the centre of the arc. (a) What is the magnetic field due to the straight segments ? (b) In what way the contribution to vecB from the semicircle differs from that of a circular loop and in what way does it resemble ? ( c) Would your answer be different if the wire were bent into a semicircular arc of the same radius but in the opposite way as shown in figure (b) ?

A circular coil of a wire containing 100 turns each of radius 2cm carries a current of 0.20A. The magnetic field at the centre of the coil is…..

Show magnetic field lines due to current carrying loop.

A current 1 flows along a triangle loop having sides of equal length a. The strength of magnetic field at the centre of the loop is :

HC VERMA-MAGNETIC FIELD DUE TO CURRENT-Exercises
  1. A current - carrying circular coil of 100 turns and radius 5.0 cm pro...

    Text Solution

    |

  2. An electron makes (3 xx 10^5) revolutions per second in a circle of ra...

    Text Solution

    |

  3. A conducting circular loop of radius a is connected to two long, strai...

    Text Solution

    |

  4. Two circular coils of radii 5.0 cm and 10 cm carry equal currents of 2...

    Text Solution

    |

  5. If the outer coil of the precious problem is rotated through 90^@ abo...

    Text Solution

    |

  6. A circular loop of radius 20 cm carries a current of 10 A. An electron...

    Text Solution

    |

  7. A circular loop of radius R carries a current I. Another circular loop...

    Text Solution

    |

  8. A circular loop of radius r carrying a current i is held at the centre...

    Text Solution

    |

  9. Find the magnetic field B due to a semicircular wire of radius 10.0 cm...

    Text Solution

    |

  10. A piece of wire carrying a current of 6.00 A is bent in the form of a ...

    Text Solution

    |

  11. A circular loop of radius r carries a current i. How should a long , ...

    Text Solution

    |

  12. A circular coil of 200 turns has a radius of 10 cm and carries a curre...

    Text Solution

    |

  13. A circular loop of radius 4.0 cm is placed in a horizontal plane and c...

    Text Solution

    |

  14. A charge of (3.14 xx 10^-6) C is distributed uniformly over a circular...

    Text Solution

    |

  15. A thin but long, hollow, cylindrical tube of radius r carries a curre...

    Text Solution

    |

  16. A long, cylindrical tube of inner and outer radii a and b carries a cu...

    Text Solution

    |

  17. A long, cylindrical wire of radius b carries a current i distributed u...

    Text Solution

    |

  18. A solid wire of radius 10 cm carries a current of 5.0 A distributed un...

    Text Solution

    |

  19. Sometimes we show an idealised magnetic field which is uniform in a gi...

    Text Solution

    |

  20. Two large metal sheets carry surface currents as shown in figure . The...

    Text Solution

    |