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DC CIRCUIT LAB
Drag or click components to add. Drag a terminal or select two terminals to connect. Select a wire and delete it to disconnect.
Select a component to change its value and read U, I, P. Conventional current flows from positive through the external circuit to negative.
Tab to focus, arrows to move, Enter to select terminals, Delete to remove, Ctrl/⌘ Z to undo, Ctrl/⌘ D to duplicate. Esc cancels wiring.
Closed return path
2/96 wires0.6 A
10 Ω
3.6 W
Drag or click to add. Crossings are not junctions.
Reset restores the opened preset. Undo restores the previous edit, including clearing the circuit.
Resistor
resistor-1
0.1–1000 Ω · Logarithmic scale
Signed U and I: terminal A → B. Negative P: power supplied.
V(A) = 6 V · V(B) = 0 V
Reference: battery-1:b = 0 V
I = U / R
0.6 A = 6 V / 10 Ω
P = U × I = 3.6 W
Measurements update when connections or parameters change.