Home
Class 12
PHYSICS
A circular coil of radius 1*5cm carries ...

A circular coil of radius `1*5cm carries a current of 1*5A`. If the coil has 25 turns , find the magnetic field at the centre.

Text Solution

Verified by Experts

Solution: The magnetic field at the centre due to each
turn is
` (mu_0) i/ 2a`
The net field due to all 25 turns is
` B= (mu^0)i n/ 2a =(((2pi xx (10^-7) TmA^-1)(1*5A ) xx 25)/(1*5 xx 10^-2)m)`
` = 1*57 xx 10^-3 T.`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD DUE TO CURRENT

    HC VERMA|Exercise Worked Out Examples|15 Videos

  • MAGNETIC FIELD DUE TO CURRENT

    HC VERMA|Exercise Short Answer|12 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 circular coil of radius 25cm , carries a current of 50 ampere. If it has 35 turns, the flux density at the centre of the coil is ( i n Wb//m^(2))

A circular coil of 100 turns has a radius of 10 cm and carries a current of 5A. Calculate the magnetic field (a) at the centre of the coil (b) at a point on the axis of the coil at a distanceof 5cm from the centre of the coil.

A tightly wound 100 turn coil of radius 10cm is carrying a current of 1A . What is the magnitude of the magnetic field at the centre of the coil?

A circular coil of wire consisting of 100 turns, each of radius 8*0cm carries a current of 0*40A . What is the magnetude of the magnetic field vecB at the centre of the coil?

A circular coil of radius 10 cm having 100 turns carries a current of 3.2 A. The magnetic field at the center of the coil is

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 9 cm carries a current of 0.4 A. The magnitude of the magnetic field at the centre of coil is [ mu_(0) = 1256 xx 10^(-7) Sl unit]

A circular coil of 20turns and radius 10cm carries a current of 5A . It is placed in a uniform magnetic field of 0*10T . Find the torque acting on the coil when the magnetic field is applied (a) normal to the plane of the coil (b) in the plane of coil. Also find out the total force acting on the coil.

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of magnetic field at the centre of the coil?

HC VERMA-MAGNETIC FIELD DUE TO CURRENT-Exercises
  1. A circular coil of radius 1*5cm carries a current of 1*5A. If the coil...

    Text Solution

    |

  2. Using the formulae ((vecF)=(vec qv)xx (vec B) and (B= (mu0)i/2pi r ), ...

    Text Solution

    |

  3. A current of 10A is established in a long wire along the positive z-ax...

    Text Solution

    |

  4. A copper wire of diameter 1.6 mm carries a current of 20A. Find the ma...

    Text Solution

    |

  5. A transmission wire carries a current of 100A. What would be the magne...

    Text Solution

    |

  6. A long, straight wire carrying a current of 1.0 A is placed horizontal...

    Text Solution

    |

  7. A long, straight wire of radius r carries a current i and is placed ho...

    Text Solution

    |

  8. A long, straight wire carrying a current of 30 A is placed in an exter...

    Text Solution

    |

  9. A long vertical wire carrying a current of 10A in the upward direction...

    Text Solution

    |

  10. Figure shows two parallel wires separated by a distance of 4.0 cm and ...

    Text Solution

    |

  11. Two parallel wires carry equal currents of 10A along the same directio...

    Text Solution

    |

  12. Two long, straight wires, each carrying a current of 5A, are placed al...

    Text Solution

    |

  13. Four long, straight wires, each carrying a current of 5.0 A, are place...

    Text Solution

    |

  14. Figure shows a long wire bent at the middle to form a right angle. Sho...

    Text Solution

    |

  15. Consider a straight piece of length x of a wire carrying a current i. ...

    Text Solution

    |

  16. Consider a 10-cm long piece of a wire which carries a current of 10A ....

    Text Solution

    |

  17. A long, straight wire carries a current i. Let B1 be the magnetic fiel...

    Text Solution

    |

  18. Figure shows a square loop ABCD with edge length a. The resistance of ...

    Text Solution

    |

  19. Figure shows a square loop of edge a made of a uniform wire. A current...

    Text Solution

    |

  20. Consider the situation described in the previous problem. Suppose the ...

    Text Solution

    |

  21. The wire ABC shown in figure forms an equilateral triangle. Find the m...

    Text Solution

    |