Choose a Topic or Enter a keyword to search:
|
You have selected the following Demos:
|
LR CircuitPurpose:To demonstrate the time constant of the circuit and its dependence on L and R.Procedure:Connect R and L in series and use the PASCO generator's square waves as a signal source. Start with 100Ohm resistor and 4.25mH air core coil and display the voltage across the inductor (see 2nd picture). Vary the values of L by sliding the iron rod through the inductor. Note that the brass/copper rod does not affect L. Show the voltage across the resistor to demonstrate the current dependence in the circuit (see 3rd picture). A schematic of the set up is shown below (4th picture).Hints:Use differential input oscilloscope to display both the charge and the current dependence.A camera pointing at the scope's screen is available for the use in room 203. Comments:If you have a suggestion for the use of this demo which might benefit others, you can enter it below.Equipment:
    |