| A circular current loop is shown in the adjacent figure. The magnetic field in the region is along x-axis and its magnitude in the space is increasing with increasing y-coordinate. The net magnetic force or the loop is - |
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A) \[along+z-axis\]
B) \[along-z-axis\]
C) \[along+y-axis\]
D) None of these
Correct Answer: D
Solution :
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| \[dF\,\,=\,\,i\,(\overrightarrow{d\ell }\times \overrightarrow{B})\] |
| Considering \[\overrightarrow{d\ell }\] at angle \[\theta \] symmetrically as shown. dF on either side have same magnitude but opposite direction |
| \[\therefore \] Both dF get cancel out net force on the loop is zero |
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