某同学改装和校准电压表的电路图如图所示，图中虚线框内是电压表的改装电路。 1已知表头g满偏电流为，表头上标记的内阻值为900Ω。r1、r2 Sketch Coloring Page

某同学改装和校准电压表的电路图如图所示，图中虚线框内是电压表的改装电路。 1已知表头g满偏电流为，表头上标记的内阻值为900Ω。r1、r2 Template

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tomski某同学改装和校准电压表的电路图如图所示，图中虚线框内是电压表的改装电路。 1已知表头g满偏电流为，表头上标记的内阻值为900Ω。r1、r2 coloring

某同学改装和校准电压表的电路图如图所示，图中虚线框内是电压表的改装电路。 1已知表头G满偏电流为，表头上标记的内阻值为900Ω。R1、R2 sketch template

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二、非选择题图a为某同学改装和校准毫安表的电路图其中虚线框内是毫安表的改装电路1已知毫安表表头的内阻为100 Ω满偏电流为1 sketch template

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