Q$2)$ A double excited rotating machine has the following self and mutual inductance $rs=40,Ls=0\mathrm{.}16H,rr=2,Lr=0\mathrm{.}04+0\mathrm{.}02cos2H$ Msr $=0\mathrm{.}08cos.$ H $.$ where the space angle between axes of the rotor coil and stator coil $.$ the rotor coil is revolving at the speed of $100$radia$\frac{n}{sec}.$ for is $=10Ad.c.$ ir $=2A$ d$.$c$.$ Obtain an expression for Torque and corresponding electrical power $.$