using CircuitSim
V = DCVoltageSource("V", voltage=10.0)
R = Resistor("R", resistance=100.0)
GND = Ground("GND")
circ = Circuit()
add_component!(circ, V)
add_component!(circ, R)
add_component!(circ, GND)
connect!(circ, Pin(V, :nplus), Pin(R, :n1))
connect!(circ, Pin(R, :n2), Pin(GND, :gnd))
connect!(circ, Pin(V, :nminus), Pin(GND, :gnd))
dc = simulate_qucsator(circ, DCAnalysis())
i_nplus = get_pin_current(dc, V, :nplus)
i_nminus = get_pin_current(dc, V, :nminus)
println("Current INTO nplus: ", i_nplus * 1000, " mA")
println("Current INTO nminus: ", i_nminus * 1000, " mA")
println("KCL: ", (i_nplus + i_nminus) * 1000, " mA")
WARNING: DC1: inserted virtual resistance at node `_net2' connected to [R,V]
Current INTO nplus: -100.0 mA
Current INTO nminus: 100.0 mA
KCL: 0.0 mA