Abstract: In the experiment named ＂Studies on the transient processes in a RLC series circuit＂, large differences between the theoretical and the experimental values of the damp oscillating period have been detected. It has been found that these differences are induced by the capacitance between the two probes of the oscillograph and the ＂zero capacitance＂ of the capacitors. Experiments are performed to obtain the value of these two capacitances and the theoretical values of the damp oscillating period are recalculated with the consideration of these two capacitances

Key words: RLC series circuit, transient processes, capacitance between the two probes of the oscillograph, ＂zero capacitance＂ of the capacitors