A) 7.5
B) 3.0
C) 4.5
D) 6.0
E) 1.5
Correct Answer: E
Solution :
\[\tau =MB\sin \theta =m\times (2l)\times B\sin \theta \] \[={{10}^{-4}}\times 0.1\times 30\,\sin 30{}^\circ \] \[=1.5\times {{10}^{-4}}N-m\]You need to login to perform this action.
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