CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

An iron wire of length I is magnetized have a magnetic moment m. If it is bent inot a semicircle of radius r, its magnetic moment is


  1. m

  2. m1r

  3. 2mπ

  4. mπ


Solution

The correct option is C

2mπ


The magnetic moment of straight wire, m=(qm)(l)
The magnetic moment of the semicircular wire, m=(qm)(2r)
mm=2rl=2rπr=2πm=2mπ

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image