🔍 Key Concepts

• Difference between shunt and series connections in DC machines • Relationship between field windings, armature windings, and external circuit in a DC generator • How a shunt field is supplied with voltage and how current is controlled (field rheostat)

💭 Think About

• Ask yourself: In a shunt generator, does the field get a small portion of full voltage or full load current? That tells you whether it should be in series or parallel with the armature. • Think about where a field rheostat is placed in a shunt field circuit: is it normally in series or parallel with the shunt field coils? • Consider: If the shunt field were in series with the armature, what would happen to field strength as load current changes?

✅ Before You Answer

• Identify which option correctly represents a parallel path across the supply/armature terminals. • Verify that a shunt field is designed to carry relatively low current and high voltage, not high current and low voltage. • Confirm that the field rheostat is used to control the field current, and note how it must be connected relative to the shunt field winding.