- #1
Philosophaie
- 462
- 0
Is this the correct partial derivative of B?
##\vec{B} = \frac{g \vec{r}}{4 \pi r^3}##
##\frac{\partial \vec B}{\partial r}## = ##-3\frac{g \vec{r}}{4 \pi r^4} + \frac{g}{4 \pi r^3 }(\frac{\partial r_r \hat r}{\partial r})##
##\vec{B} = \frac{g \vec{r}}{4 \pi r^3}##
##\frac{\partial \vec B}{\partial r}## = ##-3\frac{g \vec{r}}{4 \pi r^4} + \frac{g}{4 \pi r^3 }(\frac{\partial r_r \hat r}{\partial r})##