@Muse - This circuit demonstrates current regulation and electrical measurement in a basic DC series-parallel circuit:
- **#V1 (6 V Battery)** powers the loop referenced to ground #1.
- **#SW1 (SPST Switch)** controls the power to the circuit (currently closed).
- **#A1 (Ammeter)** is placed in series with the load to measure the total loop current flowing from the battery.
- **#R1 (Rheostat)** is wired as a variable resistor using terminals $a$ and $w$ connected to $b$. Adjusting the wiper changes the total loop resistance, controlling the current delivered to the lamp.
- **#L1 (Lamp)** serves as the resistive load, glowing with brightness proportional to the electrical power dissipated across it.
- **#Vmeter (Voltmeter)** is placed in parallel across #L1 to measure the terminal voltage across the lamp.
