四个一千欧姆电阻并联是多少 问题:4个1欧姆电阻并联是多

4\u4e2a1K\u7684\u7535\u963b\u5e76\u8054\u662f\u591a\u5c11\u6b27\u5440\uff1f\u8981\u662f\u963b\u503c\u4e0d\u4e00\u6837\u7684\u51e0\u4e2a\u7535\u963b\u5e76\u8054\u540e\u7684\uff0c\u7535\u963b\u662f\u591a\u5c11\uff1f\u548b\u8ba1\u7b97\u5462

4\u4e2a1K\u7684\u7535\u963b\u5e76\u8054\u662f\uff1a1k/4\uff1d250\u6b27\u59c6\uff1b\u5982\u679c\u5404\u4e2a\u7535\u963b\u963b\u503c\u4e3aR1\u3001R2\u3001R3\u2026\u2026\uff0c\u5e76\u8054\u540e\u963b\u503c\u4e3aR\uff0cR\u4e0eR1\u3001R2\u3001R3\u2026\u2026\u6709\u4e0b\u5217\u5173\u7cfb\uff1a1/R\uff1d1/R1+1/R2+1/R3\u2026\u2026\uff1b\u5373\u5e76\u8054\u540e\u963b\u503c\u7684\u5012\u6570\u7b49\u4e8e\u5404\u4e2a\u7535\u963b\u963b\u503c\u7684\u5012\u6570\u7684\u548c

\u6839\u636e\u76f8\u540c\u7535\u963b\u5e76\u8054\uff0c\u603b\u7535\u963b=\u5176\u4e2d\u4e00\u7535\u963b\u7684n\u5206\u4e4b\u4e00\uff0c4\u4e2a1\u6b27\u59c6\u7535\u963b\u5e76\u8054\uff0c\u603b\u7535\u963b=1\u6b27\u59c6\u76844\u5206\u4e4b\u4e00\uff0cR=1/4\u6b27\u59c6\u3002

相同电阻值的电阻并联，等效电阻最好算。两个并联，阻值等于除以2；4个并联阻值等于除以4.
所以4个1000欧姆电阻并联，阻值除以4.等于250欧姆。

鍥涗釜涓鍗冩濮嗙數闃诲苟鑱旀槸澶氬皯
绛旓細鎵浠4涓1000娆у鐢甸樆骞惰仈锛闃诲奸櫎浠4.绛変簬250娆у銆

4涓1K鐨鐢甸樆骞惰仈鏄灏娆у憖?瑕佹槸闃诲间笉涓鏍风殑鍑犱釜鐢甸樆骞惰仈鍚庣殑,鐢甸樆...
绛旓細4涓1K鐨勭數闃诲苟鑱旀槸锛1k/4锛250娆у锛涘鏋滃悇涓數闃婚樆鍊间负R1銆丷2銆丷3鈥︹︼紝骞惰仈鍚庨樆鍊间负R锛孯涓嶳1銆丷2銆丷3鈥︹︽湁涓嬪垪鍏崇郴锛1/R锛1/R1+1/R2+1/R3鈥︹︼紱鍗冲苟鑱斿悗闃诲肩殑鍊掓暟绛変簬鍚勪釜鐢甸樆闃诲肩殑鍊掓暟鐨勫拰

鐏场鐨勭數闃讳负1000娆у,骞惰仈400涓數闃讳负澶氬皯,闇瑕佽В绛旇繃绋
绛旓細骞惰仈400涓悗锛屾鐢甸樆鏄2.5娆у銆

涓涓1k鍜4k鐢甸樆骞惰仈闃诲澶氬皯
绛旓細R鎬=R1XR2/(R1+R2)=1X4/(1+4)=0.8锛鍗冩锛=800娆у銆

鐢ㄤ笉澶氫簬鍥涗釜1k娆у鐨鐢甸樆缁勬垚涓涓3/5k娆у鐨勭瓑鍊肩數闃
绛旓細2骞剁劧鍚庝覆1 鍐嶄竴涓苟 鏄庣櫧鍚

甯绠椾笅鍥涗釜鎴栬呭涓鐢甸樆骞惰仈鎬庝箞璁＄畻?
绛旓細璁颁綇涓や釜鐢甸樆骞惰仈绛変簬涓ょ殑鐢甸樆鐨勭Н闄や互涓や釜鐢甸樆鐨勫拰灏卞彲浠ヤ簡銆傚涓數闃诲苟鑱斿彲浠ヤ袱涓袱涓殑绠楀槢锛佷笂杩鍥涗釜鐢甸樆骞惰仈鍊肩瓑浜嶽293脳58梅锕293锛58锕歖脳[48脳106梅锕48锛106锕歖梅[293脳58梅锕293锛58锕歖锛媅48脳106梅锕48锛106锕歖鈮19.64涔熷氨鏄ぇ姒20惟 杩樻湁灏辨槸涓姝ヤ竴姝ョ殑鏉ュ氨鏄293脳58梅锕293...

闂:4涓1娆у鐢甸樆骞惰仈鏄澶
绛旓細鏍规嵁鐩稿悓鐢甸樆骞惰仈锛屾荤數闃=鍏朵腑涓鐢甸樆鐨刵鍒嗕箣涓锛4涓1娆у鐢甸樆骞惰仈锛屾荤數闃=1娆у鐨4鍒嗕箣涓锛孯=1/4娆у銆

骞惰仈鐢甸樆鎬庝箞绠
绛旓細3.璁＄畻鎬荤數闃诲 鎬荤數闃诲煎彲浠ヨ〃绀轰负Rt=1/Yt锛屽叾涓璕t涓烘荤數闃诲硷紝Yt涓烘诲绾炽備緥濡傦紝濡傛灉鏈変笁涓數闃诲櫒鍒嗗埆涓10娆у銆20娆у鍜30娆у锛骞惰仈鍦ㄤ竴璧凤紝璁＄畻骞惰仈鐢佃矾鐨勬荤數闃诲煎涓嬶細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...

澶氫釜鐢甸樆骞惰仈鍚庢荤數闃诲叕寮
绛旓細鏍规嵁娆у瀹氬緥鍜屽熀灏旈湇澶畾寰嬶紝鎴戜滑鍙互鎺ㄥ鍑骞惰仈鐢甸樆鐨勮绠楀叕寮忋傚亣璁炬湁n涓數闃诲櫒骞惰仈杩炴帴锛屽畠浠垎鍒负1/R鎬=1/RI+1/R2+路...路+1/Rn銆4.鎺ㄥ杩囩▼ 棣栧厛锛屾牴鎹濮嗗畾寰嬶紝鐢垫祦閫氳繃涓涓數闃诲櫒鐨勫ぇ灏忎笌璇ョ數闃诲櫒鐨勯樆鍊兼垚鍙嶆瘮銆傚亣璁剧數娴侀氳繃绗 i涓數闃诲櫒鐨勫ぇ灏忎负$I_i$锛屽垯鏍规嵁娆у瀹氬緥鍙緱锛$I_i=...

骞惰仈鐢甸樆璁＄畻鍏紡璁＄畻鏂规硶
绛旓細骞惰仈鐢甸樆璁＄畻鍏紡涓猴細鎬荤數闃籖鐨勮绠楁柟娉曟槸1闄や互姣忎釜鐢甸樆鍊肩殑鍜屽啀涔樹互鎵鏈夌數闃诲肩殑涔樼Н銆傚嵆R=R1×R2/銆傝繖鏄洜涓哄苟鑱旂數璺殑鎬荤數闃诲间細姣斾换浣曚竴涓崟鐙數闃诲艰灏忋傚苟鑱旂數璺殑鎬荤數娴佸彇鍐充簬姣忎釜鐢甸樆鐨勭數娴佷箣鍜屻傚苟鑱旂數璺殑鎬诲姛鐜囩瓑浜庡悇鐢甸樆鍔熺巼涔嬪拰銆備笅闈㈣缁嗕粙缁嶅苟鑱旂數闃荤殑璁＄畻鏂规硶銆備竴銆佺悊瑙ｅ苟鑱旂數璺 ...

扩展阅读：串联电阻计算口诀 ... 串联并联口诀 ... 电阻的三个公式 ... 电阻的计算方法 ... 2个2.5电容串联是多大 ... 色环电阻计算器 ... 多个电阻并联时 ... 2个电容并联会变大吗 ... 一步看懂并联和串联 ...