For people who don't know if they want to read the paper or those who don't have the time to do so. Should contain the final result with error. Write the abstract after you have finished with the rest of the paper. Experimental Method Description of the apparatus. Give all dimensions, mechanical and electrical properties which are of importance in carrying out or analyzing this experiment.
Results Give a representative sample of the basic measurements.
Only in rare cases is a table of numbers better than a figure. Give the important results. Discuss the uncertainties of the measurement. Distinguish between random and systematic errors and describe where they arise and how you assess a value. Clearly outline the final result and its uncertainty, and say how it was deduced.