如图甲所示是某生产流水线上的产品输送及计数装置示意图。已知计数器电路的电源电压恒为6V，其中S为一激
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| （1）0.5m/s（2）10Ω（3）3600 J 绛旓細鈶聪=kg/m3=0.6脳103 kg/m3 鈶祊=Pa=600Pa 鈶舵湁鍏夌収灏勬椂 U1=2V U2=U锛峌1=4V R1==惟=20惟 鍏夎鎸′綇鏃 U1鈥=4V U2鈥=U锛峌1鈥=2V R1鈥==惟=80惟 鍏夋晱鐢甸樆1h娑堣楃殑鐢佃兘 W1== J=480J W2=锛滼锛240J W鎬伙紳W1锛媁2锛濓紙480锛240锛塉锛720J銆.... 绛旓細锛氾紙1锛夊厜鏁忕數闃诲湪鏈夊厜鐓у拰鍏夎鎸′綇涓ょ鐘舵佷笅鐨勯樆鍊煎垎鍒负锛20惟鍜40惟锛2锛夋暣鏉＄數璺湪1灏忔椂鍐呮秷鑰楃殑鐢佃兘涓2.88脳103J 锛1锛夌敱棰樼煡锛孯 1 涓嶳 2 涓茶繛鎺ュ湪6V鐢垫簮涓婏紝鈶犳湁鍏夌収灏勬椂锛岄樆鍊艰緝灏忥紝鍒嗗帇杈冨皬U 1 =3V锛孶 2 =U锕 1 =6V锕3V=3V锛涒埖 锛屸埓 鈶℃棤鍏夌収灏勬椂锛岄樆鍊艰緝澶... 绛旓細锛1锛夌敱棰樼煡锛孯1涓嶳2涓茶仈鎺ュ湪6V鐢垫簮涓婏紝浠庡浘璞′笂鍙煡锛氣憼鏈夊厜鐓у皠鏃讹紝R1涓ょ鐨勭數鍘嬶細U1=3V锛孶2=U-U1=6V-3V=3V锛涘垯I=U2R2=3V20惟=0.15A锛屸埓R1=U1I=3V0.15A=20惟锛涒憽鏃犲厜鐓у皠鏃讹紝R1涓ょ鐨勭數鍘嬶細U1鈥=4V锛孶2鈥=U-U1鈥=6V-4V=2V锛 鍒橧鈥=U2鈥睷2=2V20惟=0.1A锛屸埓R1鈥=U1鈥... 绛旓細锛1锛夊洜R1涓嶳2涓茶仈锛屾墍浠ユ湁鍏夌収灏勬椂锛堟病鏈変骇鍝佷粠浼犻佸甫涓婇氳繃S涓嶳1涔嬮棿锛夛紝鍏夋晱鐢甸樆R1鐨勯樆鍊艰緝灏忥紝缁撳悎涔欏浘鍙煡鍒嗗帇杈冨皬涓2V锛庯紙2锛夌敱棰樻剰缁撳悎涔欏浘鍙煡锛屽綋鍏夋晱鐢甸樆鍦ㄦ棤鍏夌収灏勬椂锛屽厜鏁忕數闃讳袱绔殑鐢靛帇U1=4V锛屾墍浠2涓ょ鐨勭數鍘嬩负U2=U-U1=6V-4V=2V锛涚數璺腑鐨勭數娴両=U2R2=2V40惟=0.05A锛屽厜鏁... 绛旓細锛1锛夌敱鍥剧煡锛孯1涓嶳2涓茶仈锛屾棤鍏夌収鏃禦1鐨勭數鍘嬩负4V锛屾湁鍏夌収鏃禦1鐨勭數鍘嬩负2V锛氭棤鐓ф椂锛岀數璺腑鐨勭數娴侊細I1=I2=U?U1R2=6V?4V40惟=0.05A锛孯1=U1I1=4V0.05A=80惟锛涙湁鍏夌収鏃讹紝鐢佃矾涓殑鐢垫祦锛欼1'=I2'=U?U鈥1R2=6V?2V40惟=0.1AR1'=U鈥1I鈥1=2V0.1A=20惟锛涳紙2锛夌敱鍥捐薄鐭ワ紝1h鍐... 绛旓細锛1锛夎緝楂 锛2锛0.5m/s (3)0.05A 20惟 璇曢鍒嗘瀽锛氾紙1锛夊厜鏁忕數闃绘棤鍏夌収灏勬椂锛岄樆鍊艰緝澶э紝鍏夎浜у搧鎸′綇鏃讹紝R 1 涓ょ鐨勭數鍘嬭緝楂 锛2锛夎瀵熷浘锛堜箼锛夌煡鎸″厜鏃堕棿涓0.2s锛屽洜姝や紶閫佸甫鐨勯熷害 锛3锛夋棤鍏夌収灏勬椂鐢佃矾涓殑鐢垫祦锛 锛涙湁鍏夌収灏勬椂鐢佃矾涓殑鐢垫祦锛 锛 绛旓細鍥犳棤鍏夋椂闃诲煎ぇ锛屾湁鍏夋椂闃诲煎皬锛屾晠鏃犲厜鐢靛帇楂橈紝鏈夊厜鐢靛帇浣 1銆乿=0.1/0.2=0.5m/s 2銆乸=mg/S=0.6*10/0.1^2=600Pa 3銆丷1鍏=2/((6-2)/40)=20 娆 R1鏃=4/((6-4)/40)=80 娆 W=锛0.4*2^2/20+0.2*4^2/80)*3600/0.6=720 J 涔熷彲浠ュ厛绠楀嚭骞冲潎鍔熺巼0.2w,鍐嶄箻浠... 绛旓細R1R2涓茶仈锛屽綋R1鐨勯樆鍊煎彉澶ф椂锛岀數璺荤數娴佸噺灏忥紝R2涓ょ鐢靛帇鍑忓皬锛岀數婧愮數鍘嬩笉鍙橈紝鍙煡姝ゆ椂鐢甸樆R1涓ょ鐨勭數鍘嬪彉澶э紟鏁呯瓟妗堜负锛氬澶э紟 绛旓細鐢卞浘鐭ワ紝R1涓嶳2涓茶仈锛屾棤鍏夌収鏃讹紝R1鐨勭數鍘嬩负4V锛屾湁鍏夌収鏃讹紝R1鐨勭數鍘嬩负2V锛氣埓鈶犳棤鐓ф椂I 1锛滻2锛濓紙U锛峌1锛/R2锛濓紙6V锛4V锛/40惟锛0.05A R1锛漊1/I1锛4V/0.05A锛80惟 鈶℃湁鍏夌収鏃禝1锛囷紳I2锛囷紳锛圲锛峌1锛囷級/R2锛濓紙6V锛2V锛/40惟锛0.1A R1锛囷紳U1锛/I1锛囷紳2V/0.1A锛20惟 鐢... 绛旓細锛1锛壪=mV=mL3锛0.60.13kg/m3=0.6脳103kg/m3锛2锛塸=FS锛漨gL2锛0.6脳100.12Pa=600Pa锛3锛夋湁鍏夌収灏勬椂U1=2V锛孶2=U-U1=4V锛孯1R2锛漊1U2锛孯1=U1U2R2=24脳40惟=20惟鍏夎鎸′綇鏃禪1鈥=4V锛孶2鈥=U-U1鈥=2V锛孯1鈥睷2=U1鈥睻2鈥诧紝R1鈥=U1鈥睷2U2鈥=42脳40惟=80惟鍏夋晱鐢甸樆1h娑堣楃殑... 本站交流只代表网友个人观点，与本站立场无关 |
