Problem 3) A 200V DC shunt motor takes 22 (A) at rated voltage and runs at 1000 rpm. Its filed resistance is 100 (ohms) and the armature circuit resistance is 0.1 (ohms). Compute the value of additional resistance required in the armature circuit (Rg) to reduce the speed to 800 rpm, when the load torque is proportional to speed. 1₁ 4 Shunt winding Mechanical load m R₁