物理学 5-3电场强度 第五版 电场强度( Electric field intensity) 实验一( Experiment one)试验电荷:电量足够小的点电荷 库仑定律(ombm) Test charge. a point charge with enough small electric quantities 4。 F FE lo EF F F=1mr|aieq试验电荷 4丌er chi gge Test charge 结论:电场中不同点的电荷所受的电场力是不同的 Conclu eren t points elec field receives the electrical field force is different h 第五章静电场 5/28第五章 静电场 物理学 第五版 5-3 电场强度 5/28 二 电场强度(Electric field intensity) 实验一(Experiment one) q0试验电荷 Test charge 试验电荷:电量足够小的点电荷 Test charge: A point charge with enough small electric quantities q0 1 2 3 F F F q0 3 2 1 F F F    0 3 0 1 4 π qq F r ε r = 结论:电场中不同点的电荷所受的电场力是不同的 Conclusion: The charge in different points of electric field receives the electrical field force is different 库仑定律(Coulomb law) q 场源电荷 Field source charge q