1. A current-carrying coil of R=1 cm and a current-carryingwirerespectively have iC=0.1 A andiW=0.2A.Thecurrent in the wire runs upward, and thecurrent in the coil runsclock-wise (see Figure)
(a) Draw the direction of the magnetic field due to the coil,thewire, and the net magnetic field, at the center of thecoil;
(b) Find the net magnetic field (magnitude and direction)atcenter of coil.
