The torque-speed characteristic of a DC motor describes the relationship between the torque produced by the motor and its rotational speed. It is an important performance curve used in Electrical and Electronic Sciences to understand motor behavior under varying load conditions. Different types of DC motors exhibit different torque-speed characteristics due to variations in their field and armature connections. In a DC shunt motor, the field winding is connected in parallel with the armature winding, which provides nearly constant field flux. As a result, the torque is directly proportional to the armature current, and the speed remains almost constant even when the load torque changes. The torque-speed curve of a DC shunt motor is slightly drooping, indicating a small decrease in speed with increase in torque. The starting torque of a shunt motor is moderate, and it is suitable for applications requiring relatively constant speed such as machine tools, fans, and conveyors. The DC series motor has field winding connected in series with the armature winding, which causes the field flux to vary with the load current. At low