Amp`ere’s law in differential form. In a certain region, the magnetic field is given...

Amp`ere’s law in differential form. In a certain region, the magnetic field is given by . The medium is air. (a) Find the current density, applying function curlCar (from the previous MATLAB Exercise). (b) From the result in (a), find the total current enclosed by a square contour lying in the xy-plane, with the center at the coordinate origin and sides, of length 2 m, parallel to the x- and y-axes, by symbolic integration in MATLAB. (ME4 18.m on IR) H