九年级物理上册13.5《怎样认识和测量电流》同步练习2(新版)粤教沪版.doc

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1怎样认识和测量电流1图 532 所示是电流表表盘的示意图,如果选用“”和“0.6”两个接线柱时,它的量程是_,每一小格表示_A,此时电流表的读数是_A;如果选用“”和“3”两个接线柱时,它的量程是_A,每一小格表示_A,此时电流表的读数是_A。2图 533 是用电流表测量小灯泡电流的电路图,正确的是( )3如图 534,电流表测量的是( )A通过灯 L1 的电流 B通过灯 L2 的电流C通过灯 L1 和 L2 的电流 D通过灯 L1 和 L2 的电流和2参考答案:100.6A;0.02;0.32;03;0.1;1.62B3C

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