电势能的决定式？ 电势到底描述什么的物理量
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绛旓細鐢靛娍鑳界殑鍐冲畾寮忥紵___Ek=qU___ 鐢靛娍鏄弿杩癬_鐢靛満 鑳絖__鐨勭墿鐞嗛噺
绛旓細桅a=KQ/ra 锛岀敱鐪熺┖涓绔嬬偣鐢佃嵎Q鍛ㄥ洿鐨勭數鍔垮喅瀹氾紙鍙栨棤绌疯繙涓0鐢靛娍锛夈傜數鍦轰腑鏌愪竴鐐圭數鍔肯嗙瓑浜庣數鑽烽噺涓簈鐨勬鐢佃嵎鍦ㄨ繖涓鐐圭殑鐢靛娍鑳紼p涓巕鐨勬瘮鍊硷紝鍗诚哸=Epa/q銆傛敞鎰忥細鐢甸噺鐨勬璐熻浠ｅ叆寰椼傚湪鐢靛満涓紝鏌愮偣鐢佃嵎鐨勭數鍔胯兘璺熷畠鎵甯︾殑鐢佃嵎閲忥紙涓庢璐熸湁鍏筹紝璁＄畻鏃跺皢鐢靛娍鑳藉拰鐢佃嵎鐨勬璐熼兘甯﹀叆鍗冲彲鍒ゆ柇璇...
绛旓細鍐冲畾寮忥細蠁A=Ep/q 鐢辩數鍦轰腑鏌愪竴鐐圭數鍔肯嗙瓑浜庣數鑽烽噺涓簈鐨勬鐢佃嵎鍦ㄨ繖涓鐐圭殑鐢靛娍鑳紼p涓巕鐨勬瘮鍊煎喅瀹氥傜數鍔垮彧鏈夊ぇ灏忥紝娌℃湁鏂瑰悜锛屾槸鏍囬噺锛屽叾鏁板间笉鍏锋湁缁濆鎰忎箟锛屽彧鍏锋湁鐩稿鎰忎箟銆
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绛旓細鐢靛鐨勫喅瀹氬紡涓猴細C=蔚S/4蟺kd 銆傚叾涓紝蔚鏄竴涓父鏁帮紝S涓虹數瀹规瀬鏉跨殑姝ｅ闈㈢Н锛宒涓虹數瀹规瀬鏉跨殑璺濈锛宬鍒欐槸闈欑數鍔涘父閲忋傚父瑙佺殑骞宠鏉跨數瀹瑰櫒锛岀數瀹逛负C=蔚S/d锛埼典负鏋佹澘闂翠粙璐ㄧ殑浠嬬數甯告暟锛孲涓烘瀬鏉块潰绉紝d涓烘瀬鏉块棿鐨勮窛绂伙級銆傚畾涔夊紡锛氱數瀹瑰櫒鐨勭數鍔胯兘璁＄畻鍏紡锛欵=CU^2/2=QU/2=Q^2/2C 澶氱數瀹瑰櫒...
绛旓細鐢靛満鐨勫喅瀹氬紡锛欵=kQ/r2(鍙傜敤浜庣偣鐢佃嵎锛夈傚叾涓璄鏄數鍦哄己搴︼紝k鏄潤鐢靛姏甯搁噺锛孮鏄簮鐢佃嵎鐨勭數閲忥紝r鏄簮鐢佃嵎涓庤瘯鎺㈢數鑽风殑璺濈銆傜數鍦哄姏锛欶=Eq銆備笁銆佹ц川涓嶅悓 1銆鐢靛娍鑳鏄爣閲忋2銆佸満寮烘槸鐭㈤噺锛屽叾鏂瑰悜涓烘鐨勮瘯楠岀數鑽峰彈鍔涚殑鏂瑰悜锛屽叾澶у皬绛変簬鍗曚綅璇曢獙鐢佃嵎鎵鍙楃殑鍔涖傚満寮虹殑鍗曚綅鏄紡/绫筹紝1浼/绫=1鐗/...
绛旓細1.姘村钩鐢垫瀬鏉跨殑鐢靛娍鑳藉彉鍖栧彇鍐充簬鍑犱釜鍥犵礌锛屽寘鎷數鑽峰湪鐢靛満涓殑浣嶇疆銆佺數鍦哄己搴︺佷互鍙婄數鑽风殑绉诲姩璺緞銆傜數鍔胯兘 E_p鏄數鑽 q涓庣數鍔 phi鐨勪箻绉紝鍗 E_p = q*phi銆鐢靛娍鑳界殑鍙樺寲閫氬父涓庣數鍦哄姏鍋氱殑鍔熸湁鍏筹紝褰撶數鑽峰湪鐢靛満涓Щ鍔ㄦ椂锛岀數鍦哄姏浼氬仛姝ｅ姛鎴栬礋鍔燂紝瀵艰嚧鐢靛娍鑳界浉搴斿湴鍑忓皯鎴栧鍔 銆2.鐢靛娍鑳芥槸鐩稿鐨...
绛旓細1.鐢靛満寮哄害 瀹氫箟寮忥紙搴撲鸡鍔 鐢佃嵎閲忥級 鍐冲畾寮忥紙kq/r²锛 杩樻湁涓涓 E=U/d 2 搴撲鸡鍔 鏍规嵁F=Eq 鐒跺悗鐢ㄤ笂闈㈢數鍦虹殑寮忓瓙鎺 3鐢靛娍鑳 锛堢數鍔 x 鐢佃嵎閲 锛夋敞鎰忓甫姝ｈ礋鍙 鐢靛娍鑳藉拰鐢靛娍涓鏍锋槸涓涓浉瀵圭殑閲 鍚屾椂閮芥槸鏍囬噺 4鍋氬姛鐨刉=EpB-EpA=qU 娉ㄦ剰 鐢靛娍宸槸UBA鑰屼笉鏄疷AB 5 鐢靛鐨勫喅瀹氬紡 ...
绛旓細10.鐢靛娍鑳界殑鍙樺寲螖EAB=EB-EA {甯︾數浣撳湪鐢靛満涓粠A浣嶇疆鍒癇浣嶇疆鏃剁數鍔胯兘鐨勫樊鍊紏11.鐢靛満鍔涘仛鍔熶笌鐢靛娍鑳藉彉鍖栁擡AB=-WAB=-qUAB (鐢靛娍鑳界殑澧為噺绛変簬鐢靛満鍔涘仛鍔熺殑璐熷)12.鐢靛C=Q/U(瀹氫箟寮,璁＄畻寮) {C:鐢靛(F),Q:鐢甸噺(C),U:鐢靛帇(涓ゆ瀬鏉跨數鍔垮樊)(V)}...
绛旓細鈶︾數鍦鐨勫喅瀹氬紡锛=kQ/r^2(鍙傜敤浜庣偣鐢佃嵎锛夈傚叾涓璄鏄數鍦哄己搴︼紝k鏄潤鐢靛姏甯搁噺锛孮鏄簮鐢佃嵎鐨勭數閲忥紝r鏄簮鐢佃嵎涓庤瘯鎺㈢數鑽风殑璺濈銆傗懅鐢靛満鍔涳細F=E脳q 鐢靛娍鑳锛氶潤鐢靛満涓殑鍔胯兘銆備竴鐐圭數鑽峰湪闈欑數鍦轰腑鏌愪袱鐐圭殑鐢靛娍鑳戒箣宸瓑浜庡畠浠ヤ竴鐐圭Щ鍔ㄥ埌鍙︿竴鐐规椂锛岄潤鐢靛姏鎵浣滅殑鍔熴傜數鍔胯兘鍙嶆槧鐢靛満鍜屽浜庡叾涓殑鐢佃嵎...
