LR Circuit

Top trace is across the capacitor.
Bottom trace is across the inductor.

    Circuit board with Capacitor (103k farads) and Inductor (~ 2.3 ohms)
    Wave Generator set ~ 100 Hz, dial at 2.5, on SQUARE WAVE
    2 Channel Oscilliscope set at 5 volts / division and 0.5 ms at SEC/DIV