The motor within an automobile water pump draws a power of 10 Watt from the 12Volt battery. The permanent magnets of the stator produce a complete magnetic flux of 0.05Wb. The rotor former of a length of 8cm, a diameter of 5cm and the armature winding has 20 conducting tools. If the motor consisting of a conversion efficiency of 90 percent, calculate the torque developed in the pump and the speed of the motor in rpm.