Consider two differential current elements $-I_1\mathbf{a}_x$ located at $\mathbf{r}_1 = (2,0,1)$ m and $-I_2\mathbf{a}_y$ located at
$\mathbf{r}_2 = (1,1,1)$ m.
a) Compute $\mathbf{B}_1$ due to $-I_1\mathbf{a}_x$ at the location $\mathbf{r}_2$ of element 2
b) Compute $\mathbf{B}_2$ due to $-I_2\mathbf{a}_y$ at the location $\mathbf{r}_1$ of element 1
c) Compute the magnetic force $\mathbf{F}_{m,12}$ on element 2 due to element 1.
d) Compute the magnetic force $\mathbf{F}_{m,21}$ on element 1 due to element 2.
e) Discuss $\mathbf{F}_{m,12}$ and $\mathbf{F}_{m,21}$ in terms of Newton's third law. Do the results make sense? Why or