©
1988-2002 J.Paul Robinson - Purdue University Cytometry Laboratories
Resistance,
voltage, power, Ohm’s law
•All materials offer resistance to the flow of electrons
•Based on Ohm’s Law, the flow of a current of 1 Amp through a material of resistance of R ohms (W) produces a drop in electrical potential or a voltage difference of E volts across the resistance such that E=IR