a cross section of such a cable. The current in the center wire is $1\mathrm{.}77$ A out of the page and the current in the outer conductor is $3\mathrm{.}39$ A into the page. If the distance $\backslash ($ a $\backslash )$ is $2\mathrm{.}00$ mm$,$ determine the following.

$($a$)$ the magnitude and direction of the magnetic field at the point $\backslash ($ P$\_\{1\}\backslash )$

magnitude T

direction vertically upward toward the top of the page

$($b$)$ the magnitude and direction of the magnetic field at the point $\backslash (\backslash$mathrm$\{$P$\}\_\{2\}\backslash )$

magnitude

T

direction vertically downward toward the bottom of the page $\backslash (\backslash$checkmark $\backslash )$