Home
Class 12
PHYSICS
A long solenoid carrying current produce...

A long solenoid carrying current produces a magnetic field B along its axis. If the number of turns in the solenoid is halved and current in it is doubled, the new magnetic field will be :

A

`B/2`

B

B

C

2B

D

4B

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2022 TERM 1 SET 2

    XII BOARDS PREVIOUS YEAR|Exercise SECTION C|6 Videos

  • QUESTION PAPER 2022 TERM 1 SET 2

    XII BOARDS PREVIOUS YEAR|Exercise SECTION C|6 Videos

  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos

  • QUESTION PAPER 2023

    XII BOARDS PREVIOUS YEAR|Exercise Question|43 Videos

Similar Questions

Explore conceptually related problems

A long solenoid carrying a current produces a magnetic field B along its axis. If the number ofturns per cm is doubled and the current in the solenoid is halved, then the new value of the magnetic field along its axis will be

A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved, the new vlaue of the magnetic field is

Magnetic field B along the axis of a long solenoid is given by

The magnetic field lines in the middle of the current-carrying solenoid are :

If number of turns and current becomes double for any solenoid, then value of magnetic field becomes

A long solenoid has n turns per metre and current IA is flowing through it. The magnetic field induciton at the ends of the solenoid is

XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 1 SET 2-SECTION B
  1. The resistance of two wires having same length and same area of cro...

    Text Solution

    |

  2. In a certain region of space electric field E and magnetic field B are...

    Text Solution

    |

  3. A test change of 1.6 xx 10^(-19) C is moving with velocity vec v = (...

    Text Solution

    |

  4. In a series LCR circuit, at resonance the current is equal to :

    Text Solution

    |

  5. The frequency of an ac source for which a 10 muF capacitor has a react...

    Text Solution

    |

  6. In the given network all capacitors used are identical and each one is...

    Text Solution

    |

  7. I-V characteristics of a copper wire of length L and area fo cross-se...

    Text Solution

    |

  8. When a potential difference (V) is applied across a conductor at tempe...

    Text Solution

    |

  9. Two thick wires and two thin wires, all of the same materais and sam...

    Text Solution

    |

  10. A circular coil carrying a certain current produces a megnetic field B...

    Text Solution

    |

  11. Which one of the following statements is true ?

    Text Solution

    |

  12. The magnetic flux linked with a coil is given by phi=5t^(2)+3t+16, whe...

    Text Solution

    |

  13. When a charge is moved against the Coulomb's force of an electric fiel...

    Text Solution

    |

  14. A charge Q is located at the centre of a circle of radius r. The work ...

    Text Solution

    |

  15. A long solenoid carrying current produces a magnetic field B along its...

    Text Solution

    |

  16. Assertion (A): A bar magnet experiences a torque when placed in a magn...

    Text Solution

    |

  17. Assertion (A): In a series LCR circuit connected to an ac source, reso...

    Text Solution

    |

  18. Assertion (A): When a charged particle moves with velocity vecv in a m...

    Text Solution

    |

  19. Assertion (A): Induced emf in two coils made of wire of the same lengt...

    Text Solution

    |

  20. Assertion (A): A transformer is used to increase or decrease ac voltag...

    Text Solution

    |