Abbreviated Report for "Current-Voltage Relationships"

Names:  __________________________________________________________________

You must include on attached pieces of paper all measurements, tables, and calculations you have made during the experiment. Measurements must have units and uncertainties (where possible). You must hand in all graphs with this report. All graphs must be made by hand, on graph paper.

1.  Use the graph of current vs. voltage for the resistor + ammeter
    in series to calculate the resistance of the pair.  Write here
    the resistance, and the uncertainty in its value.  Is the resistance
    increasing or decreasing as one moves to larger voltages?












2.  Use the graph of current vs. voltage for the diode to calculate
    the dynamic resistance of the diode at the steep portion of the graph.
    Is the resistance increasing or decreasing as one moves to larger
    voltages?
    










3.  Use the graph of current vs. voltage for the light bulb to calculate
    the dynamic resistance of the bulb at a voltage of 5 Volts.
    Is the resistance increasing or decreasing as one moves to larger
    voltages?