Abstract: Resistance,as a fundamental physical quantity, plays a eritical role in electrical engineering,automation,and eleetrical technology. Aeeurate measurement of resistanee remains a key foeus in the field ofelectrodynamics.'This study proposes a novel method for measuring resistance based on the comer frequeneymethord,integrating classical oseilloscope experiments with RC, and RL, series cirevits, The influences of phasedifference, capacitanee value, inductanee value and parasitic capacitanee on the experimental results wererespectively explored in the text. The results showthat the measurement error of the median resistance in the RC eireuit is generally less than 35%,In the RL, circuitl, there is a range of resistance measurement with betterexperimental effect for different inductance values,but the overall error is relatively large, which may be due tothe influence of parasitic capacitance, skin effect,ete. This approach offers a new perspective for resistancemeasurement.
符智清, 汪 海, 张薇薇. RC、RL电路转折频率法对电阻测量的探究[J]. 大学物理实验, 2025, 38(6): 20-24.
FU Zhiqing, WANG Hai, ZHANG Weiwei. Exploration on Measuring Resistance by Turnover Frequeney Method in RC and RL Circuits. Physical Experiment of College, 2025, 38(6): 20-24.
