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高中物理电学部分,测定金属的电阻率、描绘小电珠的伏安特性曲线、把电流表改装为电压表、测定电源的电动势和内阻这几个实验均涉及电阻(金属电阻、表头内阻及电源内阻等)的测量,电阻的测量一直是电学实验高考的热点.纵观2011年各地高考试题,涉及电阻的测量,主要有直测法、伏安法、伏欧法、比较法和替代法等.
Physical high school physics part, the determination of the metal resistivity, depicting the volt-ampere characteristics of small beads, the ammeter converted to voltmeter, the determination of the electromotive force and internal resistance of these experiments are involved in the resistance (metal resistance, head resistance and Power resistance, etc.) measurement, resistance measurement has been a hot spot in the electrical experiment college entrance examination throughout the examination questions throughout 2011, involving the measurement of resistance, there are direct measurement method, voltammetry, volt method, comparison method and alternative Law and so on.