Question $20$

$5$ pts

If $I_1=0\mathrm{.}48A,I_2=2\mathrm{.}63A,$ and $d=8\mathrm{.}55cm,$ what is the magnitude of the magnetic field at any location along the top wire?

Enter your answer in units of microtesla, ${10}^{-6}$ Tesla. For example, if your calculation produces a value of $1\mathrm{.}23{10}^{-7}T,$ first convert units to $1\mathrm{.}23{10}^{-1}({10}^{-6}(T))$ or$.0\mathrm{.}123{10}^{-6}T,$ then enter your answer as $0\mathrm{.}123.$