S=1sm
2
=10
−4
m
M=2mkH∗m=2∗10
−6
H∗m
I=0,5A
B−?
B=\frac{M}{IS} \\B=\frac{2*10^{-6}H*m}{0,5 A*10^{-4} m^2}=4*10^{-2} Tl\end{gathered}
B=
IS
M
0,5A∗10
2∗10
=4∗10
−2
Tl
