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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video - LR Circuit w/ Function GeneratorPurpose:Demonstrate the time constant of an LR circuit and its dependence on inductance and resistance.Procedure: Connect R and L in series and use the PASCO generator's square waves as a signal source. One can use a 110Ω resistor (or 10Ω or light bulb) and 4.25mH air core coil. Vary the values of L by sliding the iron rod through the inductor. Note that a brass, copper or aluminum rod does not affect L. Voltage across the resistor demonstrates the current dependence in the circuit. A schematic of the set up is shown in the last image below. Hints:New Tektronix DPO 3014 Scope Setup:
Equipment:
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