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从2000年到2014年十多年间,全国高考与各省市高考的物理试卷中,以设计性实验的形式考查电阻测量的原理和方法的试题就有40多个,涉及定值电阻、电压表内阻、电流表内阻、电源内阻的测量等情形。就是这种在伏安法的基础上演变而来的设计性实验,每年却让许多考生失利。“伏伏”法、“安安”法、“加R”法等测量电阻的新方法是伏安法的原理同具体的测量实际
From 2000 to 2014 more than 10 years, the national college entrance examination and the provinces and cities in the physical examination paper, to test the form of design experiments to test the principle and method of resistance measurement questions there are more than 40, involving the value of resistance, voltmeter Resistance, ammeter resistance, power resistance measurement and other circumstances. It is this design experiment evolved from voltammetry that leaves many candidates lossed each year. The new method of measuring resistance is the principle of voltammetry with the actual measurement of the actual