电阻并联电流怎么算四个电阻并联 R1电阻 帮计算下四个或者多个电阻并联怎么计算
\u7535\u963b\u548c\u5bfc\u7ebf\u5e76\u8054\uff0c\u7535\u6d41\u4e3a\u4ec0\u4e48\u4e0d\u8d70\u7535\u963b\u6253\u4e2a\u6bd4\u55bb\u6765\u8bf4\u5427,\u82e5\u628a\u7535\u5b50\u6d41\u60f3\u8c61\u6210\u662f\u6cb3\u6d41\u4e2d\u7684\u6c34,\u7535\u963b\u662f\u6cb3\u9053\u4e00\u6837.\u7535\u963b\u5927,\u6cb3\u9053\u5c31\u7a84,\u7535\u5b50\u6d41\u4e0d\u5bb9\u6613\u901a\u8fc7,\u7535\u963b\u5c0f,\u6cb3\u9053\u5c31\u5bbd,\u7535\u5b50\u6d41\u5c31\u5bb9\u6613\u901a\u8fc7.\u800c\u5f53\u7535\u963b\u4e0e\u4e00\u6839\u5bfc\u7ebf\u5e76\u8054\u65f6,\u53ef\u4ee5\u628a\u5b83\u60f3\u8c61\u6210\u4e00\u6761\u5bbd\u7684\u6cb3\u9053\u4e0e\u4e00\u6761\u7a84\u7684\u6cb3\u9053\u5e76\u6392,\u7535\u5b50\u6d41\u5f53\u7136\u4f18\u5148\u8d70\u5927\u7684\u6cb3\u9053.\u4f46\u662f,\u5c0f\u7684\u6cb3\u9053\u4e5f\u4e0d\u662f\u6ca1\u6709\u6c34,\u53ea\u662f\u6c34\u6bd4\u8f83\u5c0f\u800c\u5df2.
\u5176\u6d41\u91cf\u4e0e\u7535\u963b\u503c\u6210\u53cd\u6bd4.
\u56db\u4e2a\u5e76\u8054\u603b\u7535\u963b\u4e3aR\uff0c1/R=1/R1+1/R2+1/R3+1/R4
\u66f4\u591a\u7684\u7535\u963b\uff1aR=1/R1+1/R2+1/R3+1/R4+...
R=R1*R2/(R1+R2)
四个都是R1并联
R=R1/4
绛旓細骞惰仈鐢甸樆璁＄畻鏂规硶濡備笅銆1銆佹荤數闃诲肩殑璁＄畻锛1/R鎬=1/R1+1/R2+1/Rn锛屽嵆鎬荤數闃荤殑鍊掓暟绛変簬鍚勫垎鐢甸樆鐨勫掓暟涔嬪拰銆傜壒鍒殑锛屼袱鐢甸樆骞惰仈鎬诲间负锛歊鎬=锛圧1*R2)/锛圧1+R2锛夊浜巒涓浉绛夌殑鐢甸樆骞惰仈锛屽叕寮忓氨绠鍖栦负R骞=R/n銆2銆佸埄鐢ㄥ叕寮廟鎬=锛圧1*R2)/锛圧1+R2锛夋寜鐓х數闃诲苟鑱斿叕寮1/R鎬=1/R1+1/R2+...
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绛旓細U鎬=U1=U2=鈥︹=Un 骞惰仈鐢佃矾鍚勬敮璺袱绔殑鐢靛帇鐩哥瓑锛屼笖绛変簬鎬荤數鍘 3.鎬荤數闃诲肩殑璁＄畻 1/R鎬=1/R1+1/R2+鈥︹+1/Rn 鍗虫荤數闃荤殑鍊掓暟绛変簬鍚勫垎鐢甸樆鐨勫掓暟涔嬪拰 鐗瑰埆鐨勶紝涓鐢甸樆骞惰仈鎬诲间负锛氥傚浜巒涓浉绛夌殑鐢甸樆骞惰仈锛屽叕寮忓氨绠鍖栦负R骞=R/n 4.骞惰仈鐢甸樆鍊肩殑浼扮畻锛堝苟鑱旈樆鍊兼瘮浠讳綍涓涓數闃鐨勫奸兘灏忥級...
绛旓細鏍规嵁鐢靛帇涓瀹氭椂锛鐢甸樆瓒婂ぇ鐢垫祦瓒婂皬锛堟牴鎹濮嗗畾寰嬶級銆傗厾�6�9=R1娴佽繃鐨勭數娴+R2涓婃祦杩囩殑鐢垫祦=鈪爎+1/2鈪爎 =1�0�5 鈪爎 =1.5 鈪爎 鈪�6�0=R2涓婃祦杩囩殑鐢垫祦+R3涓婃祦杩囩殑鐢垫祦=1/2鈪爎+鈪爎 = 1�0�5 鈪爎 ...
绛旓細銆愪緥瀛愩戝亣璁炬湁涓変釜鐢甸樆R1,R2,R3 鎴戜滑鍏堟妸R1,R2鐪嬩綔涓涓暣浣擄紝璁颁綔R12銆1/R12=1/R1+1/R2 鐜板湪灏卞彉鎴愪簡R12鍜孯3涓涓數闃诲苟鑱锛岃浣淩鎬汇1/R鎬=1/R12+1/R3 鎴戜滑鎶婁笂闈袱涓紡瀛愯仈绔嬶紝灏辫兘澶熷緱鍒1/R鎬=1/R1+1/R2+1/R3 閭ｄ箞R鎬=1/(1/R1+1/R2+1/R3)鈻鐢垫祦鐢靛帇鐢甸樆鐗圭偣 鍦ㄥ苟鑱旂數璺...
绛旓細4.璁＄畻姣忎釜鐢甸樆鍣ㄧ殑瀵肩撼 鐢甸樆鍣1鐨勫绾砓1=1/10=0.1 S鐢甸樆鍣2鐨勫绾砓2=1/20=0.05 S鐢甸樆鍣3鐨勫绾砓3=1/30=0.0333 S 5.灏嗘瘡涓數闃诲櫒鐨勫绾崇浉鍔 鎬诲绾砓t=Y1+Y2+Y3=0.1+0.05+0.0333=0.1833 S 6.璁＄畻鎬荤數闃诲 鎬荤數闃诲糝t=1/Yt=1/0.1833=5.45娆у 鍥犳锛屼笁涓數闃诲櫒骞惰仈鍦ㄤ竴...
绛旓細2銆佸垎娴:褰撳湪鐢佃矾鐨勫共璺笂闇鍚屾椂鎺ュ叆鍑犱釜棰濆畾鐢垫祦涓嶅悓鐨勭敤鐢靛櫒鏃,鍙互鍦ㄩ瀹氱數娴佽緝灏忕殑鐢ㄧ數鍣ㄤ袱绔骞惰仈鎺ュ叆涓涓數闃,杩欎釜鐢甸樆鐨勪綔鐢ㄦ槸鍒嗘祦銆3銆佸垎鍘:涓鑸敤鐢靛櫒涓婇兘鏍囨湁棰濆畾鐢靛帇鍊,鑻ョ數婧愭瘮鐢ㄧ數鍣ㄧ殑棰濆畾鐢靛帇楂,鍒欎笉鍙妸鐢ㄧ數鍣ㄧ洿鎺ユ帴鍦ㄧ數婧愪笂锛屽湪杩欑鎯呭喌涓,鍙粰鐢ㄧ數鍣ㄤ覆鎺ヤ竴涓悎閫傞樆鍊肩殑鐢甸樆,璁╁畠...
绛旓細鍥涗釜绛夊鐢甸樆骞惰仈鍚庣殑鎬荤數闃讳负5娆э紝鍒欏崟涓數闃婚樆鍊间负5*4=20娆э紝涓茶仈鍚=20*4=80娆э紝鎺ュ埌8V鐨勭數婧愪笂锛岀數璺腑鐨鐢垫祦涓8/80=0.1A
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绛旓細璁炬渶鍚鐢甸樆鐢靛帇鐢垫祦鍒嗗埆涓篣銆傚拰 I銆,鐢靛帇婧愮數鍘嬩负U锛岀數闃讳负R U銆=U-U*R[4R*R/(4R +R)+R]I銆=U銆*R
