试题与答案

有一个电流表G,内阻Rg=100Ω,满偏电流Ig=3mA,要把它改装为量程0~3

题型:填空题

题目:

有一个电流表G,内阻Rg=100Ω,满偏电流Ig=3mA,要把它改装为量程0~3V的电压表,要____________联一个____________Ω的电阻,改装后电压表的内阻是____________Ω。

答案:

串,900,1000

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