铝的电阻率 铝，铜和锡的电阻率各是多少
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铝线电阻率的定义：用来表示铝线电阻特性的物理量。铝线制成的长1米、横截面积是1平方毫米的在常温下（20℃时）导线的电阻，叫做铝线电阻率。
绛旓細鐢ㄩ噾灞炲浣20鈩鐢甸樆鐜 鏉愭枡鐢甸樆鐜(惟 m)(1)閾 1.65 脳 10-8 (2)閾 1.75 脳 10-8 (3)閾 2.83 脳 10-8 (4)閽 5.48 脳 10-8 (5)閾 9.78 脳 10-8 (6)閾 2.22 脳 10-7 (7)閿伴摐 4.4 脳 10-7 (8)姹 9.6 脳 10-7 (9)搴烽摐 5.0 脳 10-7 (10)闀嶉摤鍚堥噾 1...
绛旓細閾濈殑鐢甸樆鐜绾︿负2.83 × 10^-8 Ω·m銆傜數闃荤巼鏄弿杩版潗鏂欑數闃荤壒鎬х殑鐗╃悊閲忥紝瀹冭〃绀哄崟浣嶉暱搴﹀拰鍗曚綅鎴潰绉殑鏉愭枡鎵鍏锋湁鐨勭數闃汇傞摑浣滀负涓绉嶅父瑙佺殑瀵肩數鏉愭枡锛屽叾鐢甸樆鐜囩浉瀵硅緝浣庯紝鎰忓懗鐫瀹冨叿鏈夎壇濂界殑瀵肩數鎬ц兘銆傞摑鐨勭數闃荤巼姣旈摐鐣ラ珮锛屼絾浠嶇劧鏄數鍔涘伐涓氬拰鐢靛瓙宸ョ▼涓父鐢ㄧ殑瀵肩數鏉愭枡涔嬩竴銆傚湪...
绛旓細閾濈嚎鐢甸樆鐜锛氫负2.85 脳 10-8 娆у路绫 銆傞摑绾跨數闃荤巼鐨勫畾涔夛細鐢ㄦ潵琛ㄧず閾濈嚎鐢甸樆鐗规х殑鐗╃悊閲忋傞摑绾垮埗鎴愮殑闀1绫炽佹í鎴潰绉槸1骞虫柟姣背鐨勫湪甯告俯涓嬶紙20鈩冩椂锛夊绾鐨勭數闃锛屽彨鍋氶摑绾跨數闃荤巼銆傞摑绾跨數闃荤巼鐨勫畾涔夎瀹屼簡锛屾垜浠潵璇翠笅閾濈嚎鐢甸樆鐜囩殑鍗曚綅鍜岀鍙凤細閾濈嚎鐢甸樆鐜囩殑鍗曚綅涓烘濮喡风背(惟路m鎴杘hmm)锛屽父鐢...
绛旓細棣栧厛绠楀嚭閾濈嚎鐨勭數闃:閾濈殑鐢甸樆鐜鏄0.028 鏍规嵁鐢甸樆鐜囩殑瀹氫箟:闀1绫炽佹í鎴潰绉1骞虫柟姣背鐨勯摑瀵肩嚎鐨勭數闃诲嵆涓0.028娆у 鍒欓暱搴1500绫,鍙ｅ緞25骞虫柟姣背鐨勯摑绾跨殑鐢甸樆涓篟=1500*0.028/25=1.68娆у 鐢靛帇闄=I*R,鍗曠浉浜ゆ祦鐢垫湁鏁堝肩數鍘嬩负220V,220V/1.68绾︾瓑浜131A,131瀹夋椂,鐢ㄧ數鍣ㄧ殑杈撳叆鐢靛帇鍙樹负0V,鍗虫墍鏈...
绛旓細閾濈嚎鐢甸樆鐜锛氫负2.85 脳 10-8 娆у路绫 銆傞摑绾跨數闃荤巼鐨勫畾涔夛細鐢ㄦ潵琛ㄧず閾濈嚎鐢甸樆鐗规х殑鐗╃悊閲忋傞摑绾垮埗鎴愮殑闀1绫炽佹í鎴潰绉槸1骞虫柟姣背鐨勫湪甯告俯涓嬶紙20鈩冩椂锛夊绾鐨勭數闃锛屽彨鍋氶摑绾跨數闃荤巼銆
绛旓細甯哥敤閲戝睘瀵间綋鍦20鈩冩椂鐨勭數闃荤巼 鏉愭枡鐢甸樆鐜(惟 m) (1)閾 1.65 脳 10-8 (2)閾 1.75 脳 10-8 (3)閾 2.83 脳 10-8 (4)閽 5.48 脳 10-8 (5)閾 9.78 脳 10-8 (6)閾 2.22 脳 10-7 (7)閿伴摐 4.4 脳 10-7 (8)姹 9.6 脳 10-7 (9)...
绛旓細绛旀锛氶暱鐭矖缁嗛兘鐩哥瓑鐨勯摐鍜岄摑锛岄摑鐨勭數闃诲ぇ 鏍规嵁鐢甸樆瀹氬緥锛歊=蟻L/S 閾滅殑鐢甸樆鐜囅侀摐=1.75 脳10-8 閾濈殑鐢甸樆鐜蟻閾=2.83 脳10-8 闀跨煭绮楃粏閮界浉绛夌殑閾滃拰閾濓紝閾濈殑鐢甸樆澶
绛旓細甯哥敤鐢甸樆鐜 鏉愭枡鐢甸樆鐜(惟 m)(1)閾1.65 脳10-8 (2)閾1.75 脳10-8 (3)閲2.40脳10-8 (4)閾2.83 脳10-8 (5閽5.48 脳10-8 (6)閾9.78 脳10-8 (7)閾2.22 脳10-7 (8)閿伴摐4.4 脳10-7 (9)姹9.6 脳10-7 (10)搴烽摐5.0 脳10-7 (11)闀嶉摤鍚堥噾1.0 脳10-6 (12)...
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绛旓細閲戝睘閾溿侀摑銆侀搧鐨勫鐢垫ц兘涓嶅悓锛岄摐鍜岄摑鐨勫鐢垫ц兘鑹ソ锛岄搧鐨勫鐢垫ц兘瑕佸樊寰堝銆傚鐢垫ц兘涓鑸彲浠ラ氳繃閲戝睘鐨勫鐢电巼鎴栫數闃婚摑鏉ヨ 閲忥紝鐢甸樆閾濊秺澶у鐢垫ц兘瓒婂樊銆傞摐鐨勭數闃荤巼涓16.78锛岄摑鐨勭數闃婚摑涓26.548锛岄搧鐨勭數闃荤巼涓97.1銆傞摐涓閾濈殑鐢甸樆鐜杈冨皬锛岄搧鐨勭數闃荤巼瑕佹槸閾濆拰閾滅殑鐢甸樆閾濈殑绾4鍒6鍊嶏紝鐩稿樊鍗佸垎...
