InterviewSolution
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InterviewSolution
| 1. |
A current carrying circular loop lies on a smooth horizontal plane. Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). |
| Answer» No, because the loop can turn around itself if the torque `tau` is acting in the vertical direction. Since, torque, `vectau=(vecMxxvecB)=I(vecAxxvecB)` and `vecM` or `vecA` of the horizontal loop is in the vertical direction, so the direction of `vectau` will be in the plane of the loop for any direction of `vecB`. | |