When the computer receives a rich signal (high voltage) from the O2 sensor, it leans the fuel mixture to reduce the sensor's reading. When the O2 sensor reading goes lean (low voltage), the computer reverses again making the fuel mixture go rich.
Chemistry and physics are branches of science that both study matter. The difference between the two lies in their scope and approach. Chemists and physicists are trained differently, and they have different professional roles, even when working in a team.
The difference between chemistry and physics. By Wavefunction on Monday, September 06, 2010. I came across the following quote by the Nobel Prize winning chemist William Lipscomb (think diborane, carbonic anhydrase) with which I generally concur: âChemistry is not 'physics with less rigor'.