A) \[\frac{d(B{{r}_{2}})}{dt}=\frac{3}{5}\frac{d(B{{r}^{-}})}{dt}\]
B) \[\frac{d(B{{r}_{2}})}{dt}=-\frac{3}{5}\frac{d(B{{r}^{-}})}{dt}\]
C) \[\frac{d(B{{r}_{2}})}{dt}=-\frac{5}{3}\frac{d(B{{r}^{-}})}{dt}\]
D) \[\frac{d(B{{r}_{2}})}{dt}=\frac{5}{3}\frac{d(B{{r}^{-}})}{dt}\]
Correct Answer: B
Solution :
\[\frac{1}{3}\frac{d[B{{r}_{2}}]}{dt}=-\frac{1}{5}\frac{d[B{{r}^{-}}]}{dt}=R\]You need to login to perform this action.
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