指针式万用表内阻对测量结果的影响

Effects of the Pointer Multimeter's Internal-resistance on the Measuring Results

在模拟电路实验和家用电器维修时，若使用指针式万用表，由于其内阻的存在使得测量直流电压的结果不准确。为提高测量的准确性，应根据实际情况慎重选择合适的仪表进行测量。

Measuring results of volts d. c. is not accurate in the analog circuit experiment and the reparation of domestic electric appliances due to the pointer multimeter's internal-resistance. In order to enhance the accuracy of measurement, the appropriate instrument must be used in the practical situation.