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物理实验摩擦起电
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物理实验摩擦起电
材料准备:回形针1只;玻璃杯1个;纸1块;硬纸板1张;塑料尺1把。
实验过程:
,下端夹放一块长条状的纸。
,并把回形针穿挂在纸板下端。
。
,静电会使纸片张开。
物理实验摩擦起电