A) 0.5 T
B) 0.6 T
C) 0.25 T
D) 0.8 T
Correct Answer: A
Solution :
(a) 0.5 T Here, \[m=500g=0.5\,kg,\,l=4\,A,\,l=2.5\,m\] As \[F=IlB\,\sin \theta \] \[mg=IlB\,\sin \,90{}^\circ ,(\because \theta =90{}^\circ \,\,and\,\,F=mg)\]\[\therefore B=\frac{mg}{Il}=\frac{0.5\times 10}{4\times 2.5}=0.5T\]You need to login to perform this action.
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