Home
Class 12
PHYSICS
A long copper tube of inner radius R car...

A long copper tube of inner radius R carries a current I. The magnetie field B inside the tube is

A

`[(mu_0/2piR) I]`

B

`[(mu_0/4piR) I]`

C

`[(mu_0/2R) I]`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETISM

    BINA LIBRARY|Exercise EXERCISE|105 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    BINA LIBRARY|Exercise EXERCISE|101 Videos

  • ELECTRONIC DEVICES

    BINA LIBRARY|Exercise EXERCISE|108 Videos

Similar Questions

Explore conceptually related problems

A circular coil of wire consisting of 80 turns, each of radius 50 mm carries a current of 0.25 A. What is the magnetic field at the centre of the coil?

A circular coil of radius 'r' carrying current I is equivalent to a magentic dipole. What is the magnetic moment of the di-pole?

The wire shown in the figure carries a current of 10A. What is the magnitude of magnetic field induction at the centre O? Give the radius of the bend coil is 3 cm.

An infinitely long straight current carrying wire produces a magnetic field B at a point at a distance 'a' from it. What must be the radius of the circular loop, so that for the same current through it the magnetic field at (i) its dentre equals B/2

BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. A moving coil galvanometer has resistance 50Omega. The maximum bearabl...

    Text Solution

    |

  2. A proton enters a magnetic field of flux density 1.5Wb/m^2 with a sp...

    Text Solution

    |

  3. An electron and a proton enter a magnetic field perpendicularly. Both ...

    Text Solution

    |

  4. The earth's magnetic induction at a certain point is [7x 10^(-5)Wbm^-2...

    Text Solution

    |

  5. Two concentric circular coils of 10 turns cach are situated in the sam...

    Text Solution

    |

  6. A long copper tube of inner radius R carries a current I. The magnetie...

    Text Solution

    |

  7. Two long parallel wires carry equal current I in the same direction. T...

    Text Solution

    |

  8. In order to increase the sensitivity of a moving coil galvanometer one...

    Text Solution

    |

  9. A galvanometer has a resistance of 25Omega and a maximum of 0.01A curr...

    Text Solution

    |

  10. A voltmeter of resistance (2 x 10^4 Omega) reads 5V. To make it read 2...

    Text Solution

    |

  11. A galvanometer of resistance 20Ω is to be converted into an ammeter of...

    Text Solution

    |

  12. Two long parallel wires carry equal current I in the same direction. T...

    Text Solution

    |

  13. An electric charge moves with a constant velocity v parallel to the li...

    Text Solution

    |

  14. When a magnetic field is applied on an electron moving with uniform ve...

    Text Solution

    |

  15. A stationary electron placed in a magnetic field experiences a mechani...

    Text Solution

    |

  16. The force acting on an electron at rest in a uniform magnetic field B ...

    Text Solution

    |

  17. A conducting circular loop of radius r carries a current I. It is plac...

    Text Solution

    |

  18. Earth's magnetic field always has a horizontal component except at

    Text Solution

    |

  19. Distinguish among paramagnetic , ferromagnetic and diamagnetic materia...

    Text Solution

    |

  20. Demagnetisation of magnets is effected by

    Text Solution

    |