Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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Ringing LC Circuit w/ Battery
Purpose:To illustrate the properties of a simple LC circuit with battery during charging or discharging. First image shows the general setup.
Procedure:Charging LC Circuit: Starting with the switch in the "discharge" position, up toward the inductor, toggle switch down to "charging", then back up to "discharging". As shown in second image below, blue trace (Channel-2) measures voltage drop across capacitor, yellow trace (Channel-1) measures voltage drop across inductor. The frequency of the ringing is calculated via: f = 1 / 2π√LC
Discharging LC Circuit: Effectively similar to the charging situation, ringing in the LC circuit is observed (not shown).