摘要：完成下列单位换算:5×102 μA mA= A,0.03 A= mA= μA. 思路解析:5×102 μA=5×102×10-3 mA＝5×10-1 mA.5×102 μA＝5×102×10-6 A＝5×10-4 A,0.03 A＝0.03×103 mA＝30 mA.0.03 A＝0.03×106 μA＝3×104 μA. 答案:5×10-1 5×10-4 30 3×104

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