Electricity and Magnetism > EMF and Current DCS# 5E40.70
INTERNAL RESISTANCE AND IMPEDANCE MATCHING

APPARATUS
two 6-V batteries
 202-02-D2
12 V car battery
 101-cart
power resistor block
 202-19-E
2 DMMs 214-01-B6
#12 solid wire
 202-19-E3
key switch
 101-09-D4
camera
 202-09-D

DESCRIPTION
Plot current, voltage, and power vs load resistance.  Show that the peak power occurs when r = RL.
 
NOTES
Rload (Ω)
0.25
0.75
1.75
3.75
5.75
7.75
11.75
36.75