Electric Charge and Electric Field (id: b40a99728)

本题目来源于试卷: Electric Charge and Electric Field，类别为 IB物理学

[填空题]
A water droplet of radius 0.018 mm r4h h:8 .8tzggtw( tzlhemains stationary in the a((;o+o jdt2b sku immnxe(8 n(i6m ,nyit2v9uir. If the downward-direc xv9b(nod y,iemint;8juui ts(6on+2mm 2(k(ted electric field of the Earth is $150N/C$ how many excess electron charges must the water droplet have?    $\times {10}^6$ electrons

参考答案: 9.96±2%


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