Home
Class 11
PHYSICS
A steel wire of length l has a magnetic ...

A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment?

A

`(2L)/pi`

B

`L/pi`

C

`pi/(2L)`

D

`(3L)/(2pi)`

Text Solution

Verified by Experts

The correct Answer is:
A
`pi r=L" ":. R=L/pi` ltagnetic length `=2r=(2L)/pi`
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • MEASUREMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

Similar Questions

Explore conceptually related problems

A straight steel wire of length l has a magnetic moment M. When it is bent in the form of a semi - circle its magnetic moment will be

A steel wire of length l has a magnetic moment M. It is bent in L - shape (Figure). The new magnetic moment is

A wire of length l has a magnetic moment M. Another wire of same length and magnetic moment is taken and is bent into a semicircular arc. Find the ratio of magnetic moment of wire to that of the semicircular arc.

A magnetised steel wire of length L has a magnetic moment of 3.14 Am^(2) . If the wire is bent into a semicircular arc, then what would be its new magnetic moment? (assume that the poles are situated at the ends of the wire.)

A magnetised steel wire of length L has a magnetic moment of 3.14 Am^(2) . If the wire is bent into a semicircular arc, then what would be its new magnetic moment? (assume that the poles are situated at the ends of the wire.)

A steel wire of length 'l' has a magnetic moment 'M'. It is bent in 'L' shape having equal size of arm. The new magnetic moment is

A long thin magnet of moment M is bent into a semi circle. The decrease in the magnetic moment is