Electricity and Magnetism > Inductance DCS# 5J30.10

TRANSIENT LRC OSCILLATIONS


APPARATUS
9 H inductor 202-20-A
decade capacitance box 202-19-F
decade resistance box 214-01-A
key switch 101-09-D4
DC power supply 202-08-D
storage scope 202-08-B
camera 202-09-D


DESCRIPTION
The key switch is normally set so that the capacitor is charging.  When pressed, the power supply is disconnected, and the capacitor discharges through the LRC series circuit.  The oscilloscope is set to display VR and VC.


 

NOTES
Scope settings:
storage mode
single sweep
triggering:  CH1
DC coupled
CH1:  2 V/div
CH2:  0.2 V/div
sweep rate:  1 ms/div
limit bandwidth
RLC circuit
Clean contacts on key switch.