Final answer:
The most common method to overcome the effect of armature reaction in electric motors is by applying the force at different points of the lever arm or by maintaining the same angle between the lever arm and the applied force.
Step-by-step explanation:
The method most often used in overcoming the effect of armature reaction is by applying the force at different points of the lever arm along the length of the lever or by maintaining the same angle between the lever arm and the applied force.
Armature reaction is a phenomenon that occurs in electric motors, where the magnetic field produced by the current flowing through the armature windings interacts with the main magnetic field produced by the field windings. This interaction can cause distortion of the magnetic field and affect the performance of the motor.
To overcome the effect of armature reaction, engineers use various methods such as adjusting the position of the brushes, using compensating windings, or employing commutation techniques. However, the most common method is to adjust the force applied to the lever arm in such a way that it counteracts the effects of the armature reaction.