c) What is coefficient of adhesion? Why a train driven by separately excited motors have a better adhesion than a train driven by series motor? ile 150 incline

A 120-V DC shunt generator has an armature resistance of 1-Ω and a shunt field resistance of 240-Ω. It delivers 9.5-A to a load. Determine the following: (a)What is the total emf generated? Neglect brush drop. (b) What is the total copper loss? (Copper loss in the armature and field) (c) Calculate the stray power losses (d) If the generator requires a mechanical input of 2-hp, what is the efficiency of the machine? (Use 1 hp = 746 W)