Electricity and Magnetism > Resistance  DCS# 5F10.10

OHM'S LAW


APPARATUS
resistor 203
two DMMs 207
power supply 105-16-C
video camera 103


DESCRIPTION
Vary the power supply voltage to show that the current through the resistor is proportional to the voltage across it.

 
NOTES

 
Use a resistor value for which the calculations are easy to do in ones head, e.g. 2k ohm, 1/2 Watt.