What characteristic is produced by the starting current of a series-wound DC motor?

The starting current of a series-wound DC motor is characterized by producing high starting torque due to the motor's construction and operational principles. In a series-wound DC motor, the field windings are connected in series with the armature windings. When the motor starts, the current flowing through the armature also flows through the field windings. Since the field strength is directly related to the armature current, a high current at startup results in strong magnetic fields, which in turn generate significant torque.

This is particularly advantageous in applications requiring strong initial movement, such as starting heavy loads. The high torque available at startup allows the motor to overcome initial inertia effectively. Therefore, the characteristic produced by the starting current in a series-wound DC motor is high starting torque, which is why this answer is correct.