What is the effect of saturation on speed and torque?

Question4 A 120-V series motor runs at 2000 rpm at full load and takes a current of 12A. The armature resistance is 0.3 ohms and the series field resistance is 0.2 ohms. A diverter resistance of 0.2 ohms is connected across the series field, and the load on the motor is adjusted. If the motor now takes 20A, what is the new speed of the motor, determine the torque developed in each case.

Determine the torque established by the armature of a four-pole D.C. motor having 774 conductors, two paths in parallel, 24 milli-webers of pole-flux and the armature current is 50 Amps. i need urgently !!!!

A 12 Volt DC motor rotates at 20,000 RPM. If it’s power is 340 Watts, how many Amps of current is it drawing? What is its power in HP? How much torque (ft -lbs) is it providing? What is this torque converted to (in-lbs)? The output shaft of the motor has a gear on it with a diameter of 1” .  How much force (lbs) does the edge of the gear apply to the next gear?