🔍 Key Concepts

• Effect of reversing field connections in a DC motor • Effect of reversing armature connections in a DC motor • Relationship between torque direction and the interaction of field and armature currents

💭 Think About

• Think about what determines the direction of rotation in a DC motor: is it the direction of current in the field, the armature, or the combination of both? • Consider what happens if you change only one set of leads (field OR armature) versus changing both at the same time. • Ask yourself: does reversing both field and armature change the relative direction of their magnetic fields, or keep their relationship the same?

✅ Before You Answer

• Review that motor rotation depends on the interaction between field flux and armature current, not just one alone. • Compare the effect of reversing only the armature vs only the field vs both together. • Verify whether the net torque direction changes if both magnetic field and armature current directions are reversed simultaneously.