A) (3, 4)
B) (4, 3)
C) (3, 0)
D) (0, 3)
Correct Answer: A
Solution :
[a] Magnetic moment \[\vec{M}=\pi {{r}^{2}}i\hat{i}\]and \[\vec{B}=3\hat{i}+4\hat{j}\] \[\therefore \vec{\tau }=\vec{M}\times \vec{B}=\pi {{r}^{2}}(3\hat{i}-4\hat{i})\] \[\vec{\tau }\]will be along the direction shown. Hence, the point about which the loop will be lift up will be (3, 4)You need to login to perform this action.
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