高考物理压轴题--电学实验压轴题

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2(2)ᙠ4ᵬ0vᔠᵯúLM!ᘤLᜮìtuLᑮÿḄᓄ(3)ᢣᵬ┯Ḅᩩ_______________(!")஺(4)%«ᦋ()*ḄU—/+%h,-.ᵯ01ᵯ2஺3ᵯ0ᵯ4/Ḅ஺᝞789᪵Ḅ-.3ᵯ0ᡂ<ᔠᵯ1+>ὑᵯ@᳛BW;᝞789᪵Ḅ.Dὶᙠᵯ0G+ᑣI.>ὑᵯ@᳛BW஺(J7ᙳLᶇNOᦪ)4.Qᵨ⊤ᵫᵯ4⊤ᦋUḄ+VWX-.YB0~5mAḄᵯ4⊤GḄᑁ[L100.0C,ᵨ\ᦋUᡂ᝞Ḅ-.QYQᵨᵯ⊤+ᵯ4ஹᵯ2^ᵯ[ḄWY_ᔜᨵ.Y(ᡈᑖd)eḄ᫏N஺ᵯ4⊤Ḅ.᫏N+ᜧYOYḄ10h஺(1)ijᣚlᐵSnᑮNp_______q+ᵯ4᫏+rnᑮNpḄYsᜧtijᣚlᐵSnᑮNp_____q+ᵯ2᫏+rnᑮNp______ḄYsᜧu(2)AஹB⊤v+Bw⊤vuবḄᵯ0E'ḄᵯyzB9.0V,i{jᣚlᐵSnᑮNp4,ᙠAB|}900஺ᵯ[q+⊤ᜮG஺|⌕Ḅஹ(Ḅ஺ᑣRi=—C,&=—0(4)jᣚlᐵSnᑮNp1q+Y஺5.(1)ᵨQᵨᵯ⊤Wᵯ[[dḄᵯ1᝞ᵬᡠ+ᵯḄᵯyzBEஹᑁ[Br,RoBᵯ[+RB⊤ᜮᑁ[+ᵯ1ᵯ4/3Wᵯ[Ḅ[dᐵ᝞%ᡠ+ᑣḄᦪᐵgBu(ᵯ[ᐭᵯ1Ḅᑖ[dᵨRo⊤)

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C.ᘤRiáᨬᜧ200Q
D.ᘤR2áᨬᜧ20஺ãE.ᵯR3á1499Q
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10ᵫ/"ᦪᑮU/IḄ5ᙳ782772C,ᑣ>?᪵Ḅᵯ8ABCᡠ?᪵᣸E᪗G(I“Kᑮ”ᡈ“NKᑮ")஺ὃᫀ1.R23.02.1(rA+R2)YZூ\᪆௃(1)ᵯ_⊤A2`R2aὶBᦋd8"e8஻=4g+U)=300*10k1000+9000»=3^Ḅᵯo⊤ᦑ⌱R2ᓽB(2)ᵫsBCᵯ_⊤A2ḄtᦪuvḄᵯo7ᓽ8ᵯwḄᵯxᑣE=3.0V;ᑁ\U3.0-1.80^c…r=---=---------஺=2.112M0.58বᵫ⚪BC/=4ফ+&)c(R+&)=/d(+&);ὶ\&=(*-)+&);1c1aᵫ/ᑖ᪆BCὃ⇋ᵯ_⊤AiᑁḄᑣ⊤Kᑡᡂ/“(R+5)=4(j+&),/(⇼+R+Rஹ)=/ᐸ+&),ᨬḄ⊤KᑣᵨḄ7`ᐸ7Y¡YZ஺2.0.153002.931.00Nᨵூ\᪆௃(1)᪷¤¥¦§BCIr=(I-I)R,¨ᐭᦪ\Ri=0.15Q.ccc](2)᪷«sBCᵯo⊤tᦪ82.6V;᪷sBCᵯ_®Ḅtᦪ8100mA,°±ᵯRiḄᵯ_Z²°±ᵯ_®Gᵯ_Ḅ2´ᑣᵯḄµᵯ_8300mA;᪷s¶BCᵯwḄᵯx8:E=2.93V,¸ᦋdḄᵯ_⊤Ḅᑁ8R,=¹0=0.10ᑣᵯwᑁ0.15+0.30------vQ-/?.=1.000(3)ᵯwᵯxZ²ᵯ_⊤tᦪ8¼½ᵯo⊤ḄtᦪBCᵯ⊤ᦋd½ᵨᩭᦋdᵯ_⊤ḄᵯR1Ḅ▭7ᶍÁ²®Â7ᑣuᵯwᵯx"ḄÃÄÅ3.8¼ᐜᨩÈ5ஹ61.040.44ூ\᪆௃(1)ᵫᱥᵯsBCᐵÊËᑴᑖoᵯḄᔠÍΡ᝞ᔠᵯÏᘤᜮ

11ᙠs,ÒÓÔÕ½ᵯo⊤,ᦪ8¼஺(2)ᵫᱥᵯsBCᔠᵯÖᘤᜮ×ØÙᑮÚÙḄ±eᘤᐭᵯḄ7Ûᜧ_±ÝÞḄᵯ_ßÁÝÞḄ▭à᳛ÁÝÞᨩâᱏᑮKÚÙ½ᘤᐭᵯḄ78¼ÝÞäÙᵯoÛᜧÝÞ▭à᳛ÛᜧÝÞÈ(3)åæÝÞçèᱯឋëìíᘤvîᵨᑖoᵯo⊤ᑁïᜧ²ÝÞᵯᵯ_⊤vîᵨ᜜ᡠ/ì5ஹ6┯ò(4)ᵫsᡠ,ᦪBCÝÞäÙᵯo82.1V,_±ÝÞḄᵯ_80.5A,ÝÞ▭à᳛8P="=2.1x0.5=1.05W(1.03V-1.06V)ᵫsᡠ,sìBCᵯwᵯx8£=3.0V,ᵯwᑁATT஺øC18ᔆ=——=.ù1.80CâäÝÞaὶúûüÝÞäÙḄᵯo8U,_±ûüÝÞA/0.5ErḄᵯ_8/ᑣU=-----/=1.5-0.97,ᙠÝÞU-/sýᙶ᪗&ᑁÿ1.5—0.9/᝞ᡠ22ᵫᵯ1.2V,Ḅᵯ0.37A,ᑣḄ%᳛p="=0.37x1.2=0.44Wᦑ(⚪*ᫀ,(1)./0(2).ᐜ2ᨩ425(3).5ஹ6(4).1.04ম.0.444.1:215:66A1090100mAூ=᪆௃(1)ᵯ⊤AὶᵯCD᡽ᜧGHIJᣚLᐵSOᑮQR1:2I,ᵯ᫏IT1QRḄGHᜧ;ᵯ⊤VὶᵯCD᡽ᜧGHIJᣚLᐵSOᑮQR5:6,,ᵯ᫏IVὶᵯCWᜧIGHWᜧIᦑQR6ḄGHᜧX(2)ᙠZ[\GᵯCI]^_᫏Ḅᵯ`aᵯbcdIᑣefgLᐵShᑮ3ᡈ4QR஺ᢕlᵯmn⊤oZIp⊤oIA,n⊤o஺(3)(4)“rstuZ[vw⌕ḄஹyzḄ{|”I~ᕡḼrstueAஹ8d0v(ᓽ⊤ᜮ)IᙠA3rd900஺ᵯCI⊤ᜮGI⊤ᜮIᦋḄ^_⊤“4”

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