🔍 Key Concepts

• Voltage regulation in a DC generator or alternator (what it means for it to be ‘good’ or ‘poor’). • The effect of adding a high resistance choke (inductor) in series with a circuit on current changes when load varies. • How inductive reactance and resistance can smooth or oppose rapid changes in current and voltage.

💭 Think About

• When load current increases or decreases, what does a high resistance choke physically do to the change in current? Does it allow current to change quickly or slow it down? • If the current cannot change quickly, what happens to terminal voltage when the load suddenly increases—does it drop more or less than without the choke? • How would smoothing out current and voltage changes affect the quality of voltage regulation: better (more constant) or worse (more variation)?

✅ Before You Answer

• Be clear on the definition: Good voltage regulation means the output voltage stays nearly constant from no-load to full-load. • Think through whether a high resistance choke tends to stabilize or destabilize voltage under changing loads. • Eliminate any option that contradicts the physical effect of an inductor: it opposes changes in current, especially for AC or varying loads.