一个有源线性电阻网络,其端口开路电压为30V,当把安培表接在端口时,测得电流为3A,则若把10Ω的电阻接在该端口时,则10Ω元件两端电压为( )。
发布时间:2026-01-24
A.-15V
B.30V
C.-30V
D.15V
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