Home
Class 12
PHYSICS
A long solenoid of N turns has a self-in...

A long solenoid of `N` turns has a self-induced `L` and area of cross-section A. When a current `i` flows through the solenoid, magnetic field inside it has magnitude `B` . The current `i` is equal to

A

BAN/L

B

BAN/L

C

BN/AL

D

B/ANL

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-2 (LEVEL-I)|16 Videos

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-2 (LEVEL-II)|2 Videos

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 3 (SECTION - B)|8 Videos

  • ELECTROMAGNETISM

    MOTION|Exercise Exercise|136 Videos

Similar Questions

Explore conceptually related problems

A solenoid has length 0.4cm , radius 1 cm and 400 turns of wire. If a current fo 5 A is passed through this solenoid, then what is the magnetic field inside the solenoid?

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

The magnitude of the magnetic field inside a long solenoid is increased by

A solenoid has 20 turns per cm. What is the value of the current that should be passed through the solenoid, to produce a magnetic field of 4 mT at its center?

MOTION-ELECTROMAGNETIC INDUCTION-EXERCISE-1
  1. A rod of length l rotates with a uniform angular velocity omega about ...

    Text Solution

    |

  2. The north pole of a magnet is brought near a coil. The induced current...

    Text Solution

    |

  3. The coefficient of mutual induction between two coils is 4H. If the cu...

    Text Solution

    |

  4. A coil of wire of a certain radius has 600 turns and a self-inductance...

    Text Solution

    |

  5. A long solenoid contains 1000 turns/cm and an alternating current of p...

    Text Solution

    |

  6. The magnetic flux through a stationary loop with resistance R varies d...

    Text Solution

    |

  7. A closed planer wire loop of area A and arbitrary shape is placed in a...

    Text Solution

    |

  8. Two coil A and B have coefficient of mutual inductance M=2H. The magne...

    Text Solution

    |

  9. Induction furnace works on the principle of

    Text Solution

    |

  10. L, C and R represent the physical quantities inductance, capacitance a...

    Text Solution

    |

  11. In an L-R circuit connected to a battery of constant e.m.f. E switch S...

    Text Solution

    |

  12. A current of 2A is increasing at a rate of 4A//s through a coil of ind...

    Text Solution

    |

  13. A long solenoid of N turns has a self-induced L and area of cross-sect...

    Text Solution

    |

  14. The current in an L - R circuit in a time t = 2L / R reduces to-

    Text Solution

    |

  15. An LR circuit with a battery is connected at t=0. Which of the follow...

    Text Solution

    |

  16. Electro magnetic waves travel in a medium with speed of 2xx10^(8)m//se...

    Text Solution

    |

  17. A light beam travelling in the x-direction is described by the eectirc...

    Text Solution

    |

  18. A L-C resonant circuit contains a 200 pF capacitor and a 100 muH induc...

    Text Solution

    |

  19. The frequency of radio waves corresponding to a wavelength of ...

    Text Solution

    |

  20. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |