Question 490Electricity & Electronics - QMED

The correct answer is A) series wound. Series wound DC motors are never connected to a belt-driven load because they are not suitable for that application. Series wound motors have a high starting torque but poor speed regulation, which means their speed can vary significantly with changes in load. This makes them unsuitable for driving a belt-driven load, as the varying speed could cause instability or damage to the belt and driven equipment. The other options, shunt wound (B), compound wound (C), and permanent magnet (D) motors, are better suited for belt-driven loads due to their more stable speed characteristics.