The Ward-Leonard system, which is used in the control of large dc motors employed in rolling mills, is a highly flexible arrangement for effecting position and speed control of a separately excited dc motor. A simplified schematic diagram of such a system is shown in Figure (a), in which the tachometer, error detector, and amplifier are represented functionally rather than by electric circuit connections. Assume the motor field current is held constant, the load torque is ignored, and the generator speed is held constant under all conditions of operation. Determine the transfer functions Ω_o/E_g and Ω_o/E_e, and develop a block diagram for the system.