谁能告诉我如何计算这道电路题Specialshuntresi-查字典问答网

来自彭亦功的问题

　　谁能告诉我如何计算这道电路题Specialshuntresistorsdesignedtodrop50mVinhighcurrent-measuringapplicationsareavailablefrommanufacturers.A50mV,10Kohmfull-scalevoltmeterisconnectedacrosstheshunttomakethemeasuremen

　　谁能告诉我如何计算这道电路题

　　Specialshuntresistorsdesignedtodrop50mVinhighcurrent-measuringapplicationsareavailablefrommanufacturers.A50mV,10Kohmfull-scalevoltmeterisconnectedacrosstheshunttomakethemeasurement.

　　1.Whatvalueofshuntresistanceisrequiredtousea50mVmeterina50Ameasurementapplication?

　　2.Howmuchcurrentisthroughthemeter?

　　谁能告诉我运算过程,谢谢.

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2020-06-2818:00

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刘兴堂

　　1.valueofshuntresistanceis：50mVDive50A,theresultis0.0012.currentthroughthemeteris:50A*(0.001*10000/(0.001*10000)),theresultis0.0009999999,aboutto1mA