Elec Class
learn electricity hands-on
Solved exercise · level 1 of 5
Skills: Build, Measure
Switch K1 is open: no current flows.
Click K1 to close it (or select it and choose "Closed" in the inspector).
With the switch closed the loop is complete: I = 9 / 470 ≈ 19.1 mA. Open, I = 0.