[填空题]
A long pair of wires conducts 25.0 jhyj .xyd7. .eA of dc current3uuz6bktq 4:yh, 6uvxz 5: qag et8xf5 to, and from, an instrument. If the insux8, z3e56 vqu4z 5gb6ttqhka:y:u uxflated wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field 10.00 cm from their midpoint, in their plane (Fig. Below)? Compare to the magnetic field of the Earth.
$ \times10^{-6 }\;T$ The field of the wires is about % that of the Earth.(retain two decimal places)
