Home
Class 12
PHYSICS
A long solenoid of length L has a mean d...

A long solenoid of length `L` has a mean diameter `D`. It has `n` layers of windings of `N` turns each. If it carries a current `‘i’` the magnetic field at its centre will be

A

directly proportional to D

B

inversely proportional to `D^(2)`

C

directly prportional to length (L)

D

`independent of the diameter D

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 9|30 Videos

  • MAGNETISM

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|15 Videos

Similar Questions

Explore conceptually related problems

A solenoid is 2 m long and 4 cm in diameter. It has 4 layers of windings of 1000 turns each and carries a current of 5 A. What is the magnetic field at the center of the solenoid?

A solenoid of length 1*0m and 3*0cm diameter has five layers of windings of 850 turns each hand carries a current of 5 ampere. What is the magnetic field at the centre of the solenoid? Also calculate the magnetic flux for a cross-section of the solenoid at the centre of the solenoid.

A solenoid 3*142 m long and 5*0 cm in diameter has two layers of windings of 500 turns each and carries a current of 5A. Calculate the magnetic induction at its centre along the axis.

A solenoid of length π m and 5 cm in diameter has winding of 1000 turns and carries a current of 5 A. Calculate the magnetic field at its centre along the axis.

A long solenoid has 200 turns per cm and carries a current of 2.5A. The magnetic field at its centre is

A solenoid 50 cm long has 4 layers of windings of 350 turns each. If the current carried is 6 A, find the magnetic field at the centre of the solenoid.

A solenoid 50 cm long has 4 layers of windings of 350 turns each. If the current carried is 6A. Find the magnetic field at the centre of the solenoid

A solenoid of 2m long & 3 cm diameter has 5 layers of winding of 500 turns per metre length in each layer & carries a current of 5A . Find intensity of magnetic field at the centre of the solenoid.

A solenoid is 3 m long and its inner diameter is 4.0 cm . It has three layers of windings of 2000 turns each and carries a current of 2.0 amperes. The magnetic flux for an cross-section of the solenoid is nearly

MARVEL PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-MCQ
  1. A solenoid is 2 m long and 4 cm in diameter. It has 4 layers of windin...

    Text Solution

    |

  2. A current of 2 A flows in an air core solenoid of length 1 m and numbe...

    Text Solution

    |

  3. A long solenoid of length L has a mean diameter D. It has n layers of ...

    Text Solution

    |

  4. Six wires carry currents I1=I A,I2=2A,I3=3A,I4=1 A,I5=4 A and I6=5 A. ...

    Text Solution

    |

  5. A vertical straight conductor carries a current vertically upwards. A ...

    Text Solution

    |

  6. Five very long insulated straight wires are bound together to form a s...

    Text Solution

    |

  7. The magnetic induction due to toroidal solenoid is independent of

    Text Solution

    |

  8. A current of 1.6 A flows through a long solenoid, having 8 turns/cm. T...

    Text Solution

    |

  9. Toroid is a

    Text Solution

    |

  10. If a current is passed through a spring then the spring will

    Text Solution

    |

  11. A straight section PQ of a circuit lise along the X-axis from x=-a/2 t...

    Text Solution

    |

  12. A long solenoid has 200 turns per cm and carries a current i. The magn...

    Text Solution

    |

  13. An electron is moving with the velocity of 10^(7)m/s, parallel to a st...

    Text Solution

    |

  14. The wire loop ABCDEA formed by joining two semicircular loops of radii...

    Text Solution

    |

  15. A winding wire which is used to prepare a solenoid of length 80 cm can...

    Text Solution

    |

  16. A pair of stationary and infinitely long bent wires is placed in the X...

    Text Solution

    |

  17. The current in the windings on a toroid is 2.0A. There are 400 turns a...

    Text Solution

    |

  18. A moving coil galvanometer needs a current of 100muA for a full scale ...

    Text Solution

    |

  19. A rectangular coil of effective area 0.05 m^(2) is suspended freely i...

    Text Solution

    |

  20. A rectangular coil of area vecA and number of turns n is placed in a u...

    Text Solution

    |