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 V
R
and V
C
.
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
Clean contacts on key switch.