Current-Voltage characteristics

Here are some sample results (Calypso's group) of an experiment to investigate how the current varies with voltage for a resistor, filament bulb and diode

Resistor

V / V I / A
-4.7 -0.47
-3.85 -0.38
-1.79 -0.18
-0.1 -0.01
0.2 0.02
0.8 0.08
2.34 0.23
2.81 0.28
3.31 0.32
3.61 0.36

Filament bulb

V / V I / A
-7.11 -0.16
-4.80 -0.13
-3.15 -0.11
-1.72 -0.07
-0.2 -0.03
1.16 0.06
2.17 0.08
3.52 0.11
4.53 0.13
6.48 0.15
7.92 0.17

Diode

V / V I / A
-0.95 0.00
-0.63 0.00
-0.47 0.00
-0.35 0.00
-0.23 0.00
0.26 0.00
0.43 0.00
0.55 0.10
0.75 0.65
0.78 1.46
0.97 4.30