Question $1(12$ Marks$)$

a$-$ What is the architecture of automation system?

b$-$ What are the differences between conventional and mechatronics design?

c$-$ Initially a d$.$c shunt motor having ra $\backslash (=0\mathrm{.}5\backslash$Omega $\backslash )$ and $\backslash ($ R$=220\backslash$Omega $\backslash )$ is running at $1000$ rpm drawing $20$ A from $220$ V supply. If the field resistance is decreased by $\backslash (5\backslash \%\backslash ),$ calculate the new steady state armature current and speed of the motor. Assume the load torque to be constant.