Home
Class 12
PHYSICS
A long wire carries a steady curent . It...

A long wire carries a steady curent . It is bent into a circle of one turn and the magnetic field at the centre of the coil is `B`. It is then bent into a circular loop of `n` turns. The magnetic field at the centre of the coil will be

A

2nB

B

`n^(2)B`

C

nB

D

`2n^(2)B`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment (Section B) Objective Type Questions (One option is correct)|34 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment Section C (Objective Type Questions (More than one option are correct)|14 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Try Yourself|27 Videos

  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION D|16 Videos

  • NUCLEI

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be

The magnetic field at the centre of the current carrying coil

Knowledge Check

  • Along wire carries a steady current. It is bent into a circle of one tum and the magnetic field at the centre of the coil is B. It is then bent into a circular loop of N tums. The magnetic field at the centre of the coil will be

    A
    NB
    B
    `N^(2)`
    C
    2NB
    D
    `2n^(2)B`

  • A long wire carries a steady current. It bent into a circle of one turn and magnetic field at the centre of the coil is B. It is then bent into a circular loop of n turns. The magnetic field at the centre of the coil will be :

    A
    nB
    B
    `2n^(2)B`
    C
    2nB
    D
    `n^(2)B`

  • A long wire carrying a steady current is bent into a ciruclar loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a ciruclar coil of n turns. The magnetic field at the centre of this coil of n turns will be :

    A
    2nB
    B
    `2n^(2)B`
    C
    nB
    D
    `n^(2)B`

    • Similar Questions

    Explore conceptually related problems

    When a long wire carrying a steady current is best into a circular coil of one turn, the magnetic induction at its centre is B. When the same wire carrying the same current is bent into a circular coil of one turn, the magnetic induction at its centre is B. when the same wire carrying the same current is bent to form a circular coil of a turns of a smaller radius, the magnetic induction at the centre will be

    A steady current flow in a long wire. It is bent into a circular loop of one turn and the magnetic field at the centre of the coil is B. If the same wire is bent into a circular loop of n turns, the magnetic field at the centre of the coil is

    A wire of length L carrying a current I is bent into a circle. The magnitude of the magnetic field at the centre of the circle is

    The magnetic field at the centre of current carrying coil is

    A wire of certain length carries a current l.It is bent to form a circle of one turn and the magnetic field at the centre is B1. If it is bent to form a coil of four turns, then magnetic field at centre is B_2 .The ratio of B_1 and B_2 is

    Home
    Profile