Northwestern Physics Demos                                 Go back to MAGNETISM 
DCS# 5J30.10NWU#  E-5Location:  Green AV cabinet  
title: RC, RL circuit
aka:  square wave into RLC circuit, ringing

A Pasco signal generator produces a square wave (about 5 hz) into an RLC circuit on a board.  
Using DataStudio, the input waveform is compared to the waveform found over the capacitor and resistor.  A large coil is used for the inductor.

    How does the wave form observed change with the following modifications?
    A. The capacitor is increased.
    B. The inductance is changed (increased or decreased?) by inserting a piece of iron into the coil.
    C. The time period of the square wave is decreased.

pix of set upcircuit set up