电场中带负电粒子的动能和电势能总和为负数怎么理解 为什么负电荷形成的电场中正电荷具有的电势能为负,负电荷具有的...
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W(A->B)=E(A)-E(B)
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E(A)=W(A->B)\uff0c
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绛旓細杩涘叆鍖寮鐢靛満,灏卞彈涓涓亽鍔汧 (F=EQ)鏃犺甯︾數绮掑瓙鏄杩樻槸璐,鍨傜洿鏂瑰悜閫熷害涓嶅彉,姘村钩鏂瑰悜閫熷害鍚戠數鍔垮噺灏忕殑鏂瑰悜澧炲姞,閫氫織鐨勮灏辨槸甯︽鐢电殑绮掑瓙鍚戠數鍦烘鏂瑰悜鍋忚浆,鍙嶄箣鍚戣礋 鍔ㄨ兘鏄剧劧澧炲姞,鍥犱负澶氫簡姘村钩閫熷害 鐢靛娍鑳鍑忓皬,鍥犱负绮掑瓙鍋氭鍔