Home
Class 12
PHYSICS
A wire in the form of a circular loop of...

A wire in the form of a circular loop of one turn carrying a curretn I produces a magnetic field B at its centre. If the same wire is looped into a coil of 2 turns and carries the same current, then magnetic field produced at the cetre of coil is

A

B

B

2B

C

4 B

D

`B/2`

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION A) (FILL IN THE BLANKS)|3 Videos

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION B)|2 Videos

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise LONG ANSWER QUESTIONS-II|11 Videos

  • MODEL TEST PAPER 3 (UNSOLVED)

    U-LIKE SERIES|Exercise SECTION A|3 Videos

  • NUCLEI

    U-LIKE SERIES|Exercise Self Assessment Test|10 Videos

Similar Questions

Explore conceptually related problems

A coil of 50 turns and 4cm radius carries 2A current then magnetic field at its centre is :- ?

A circular loop of one turn carries a current of 5.00 A. If the magnetic field B at the centre is 0.200 mT, find the radius of the loop.

Knowledge Check

  • A wire in the from of a circular loop of one turn carrying a current produces a magnetic fild B at the centre. If the same wire is looped into a coil of two turns and carreis the same current, the new value of magnetic induction at the centre is

    A
    `5B`
    B
    `3B`
    C
    `2B`
    D
    `4B`

  • A square loop of side a carris a current I . The magnetic field at the centre of the loop is

    A
    `(2mu_0Isqrt2)/(pia)`
    B
    `(mu_0Isqrt2)/(pia)`
    C
    `(4mu_0Isqrt2)/(pia)`
    D
    `(mu_0I)/(pia)`

  • A circular coil carrying a certain, current produces a magnetic field B_(0) at its centre. The coil is now rewound so a to have 3 turns and the same currents is passed through it. The new magnetic field at the centre is

    A
    `(B_(0))/9`
    B
    `9B_(0)`
    C
    `(B_(0))/3`
    D
    `3B_(0)`

    • Similar Questions

    Explore conceptually related problems

    A circular coil carrying a certain current produces a megnetic field B_(o) at its centre. The coil is now rewound so as to have 3 turns and the same current is passed through it. The new magnetic field at the centre is

    An equilateral triangular loop of wire of side / carries a current I. The magnetic field produced at the circumcentre of the loop is

    A square frame of side 1 m carries a current I, produces a magnetic field B at its centre. The same current is passed through a circular coil having the same perimeter as the square. The magnetic field at the centre of the circular coil is B'. The ratio B"/"B is

    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 current passing through a circular coil of two turns produces a magnetic field B as its centr. The coil is then rewound so as to have four turns and the same current is passed through it. The magnetic field at its centre now is

    Home
    Profile