CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

A short bar magnet of magnetic moment 0.4 JT1 is placed in a uniform magnetic field of 0.16 T. The magnet is in stable equilibrium, when the potential energy is 


Your Answer
A
0.064 J
Correct Answer
B
-0.064 J
Your Answer
C
zero
Your Answer
D
0.082 J

Solution

The correct option is C -0.064 J
Here, Magnetic moment, M=0.4 JT1
, B=0.16 T
When a bar magnet of magnetic moment M is placed in a uniform magnetic field, it's potantial energy isU=M.B=MBcos(θ)For stable equlibrium, θ=00U=MB=(0.4JT1)(0.16 T)=0.064 J

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image