Home
Class 11
PHYSICS
A magnetised wire of moment M is bent in...

A magnetised wire of moment M is bent into an arc of a circle subtending an angle of 60^(@) at the centre. The new magnetic moment is

A

`(sqrtM)/(2pi)`

B

`M/pi`

C

`(2M)/(pi)`

D

`3/pi M`

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

Similar Questions

Explore conceptually related problems

Find the length of an arc of circle which subtends an angle of 108^@ at the centre, if the radius of the circle is 15cms.

The diameter of a circle is 14 cm. Find the length of the arc, subtending an angle of 54^(@) at the centre.

Knowledge Check

  • The length of arc of a circle of radius 9cm subtending an angle of 40^@ at the centre is

    A
    `2pi cm `
    B
    `12pi cm`
    C
    `2pi cm`
    D
    `4pi cm`

    • Similar Questions

    Explore conceptually related problems

    Select and write the correct answer from the given alternatives in each of the following:The length of an arc of a circle which subtends an angle of 108^@ at the centre,if the radius of the circle is 15cm is

    Select and write the correct answer from the given alternatives in each of the following:The length of the arc of the circle which subtends an angle of 36^@ at the centre having radius 5cm is:

    A bar magnet of length ! and magnetic dipole moment M is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be

    The area of a circle is 225pi sq. cm. Find the length of its arc subtending an angle of 120^(@) at the centre. Also find the area of the corresponding sector.

    A wire of length 5 cm is bent so as to form an arc of a circle of radius 2cm.What is the angle subtended at the centre in degree

    A small hole is made at the centre of the magnet then its magnetic moment

    Two wires of same length are shaped into a square and a circle. If they carry same current, ratio of the magnetic moment is

    Home
    Profile