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        1. Ӣҽ̾W(wng) > > }ĿԔ
          ijУƼСMͬW(xu)PTCԪ댧(do)wմɲϣһ(g)늼ӟᱣرµě_(ki)ˮڱ(ni)ɼӟ60棬@NԪ늌W(xu)O(sh)؜ضȞ60֪õPTCԪֵRTSضȵ׃P(gun)ϵDʹÕr(sh)PTCԪDҽͥ·

          Ո(qng)شІ(wn)}
          1(dng)ضȞ60r(sh)·е          Aͨ1minPTCԪĵ          J
          2PTCԪ늹          W
          3رPTCԪM(jn)бصԭǣ(dng)ض_(d)60r(sh)PTCԪl(f)ṦʵɢṦʣͬr(sh)g(ni)a(chn)ğcɢʧğȣضȱֲ׃ĈD׿Կٮ(dng)Ĝضȸ60r(sh)                           ض½ڮ(dng)ضȵ60r(sh)                       ض˱رеˮԱ60
          10.022   290.4  224.2
          3(j)P=U2/Rİl(f)ṦʜpСl(f)ṦСɢṦ
          С60r(sh)ֵͬl(f)Ṧl(f)ṦʴɢṦ

          ԇ}1҈D֪·ֻRr
          (dng)ضȞ60r(sh)ɼ׈D֪Rr=10K=10000
          Դ늉U=220V
          ·е飺
          t=1min=60s
          ĵܞ飺W=UIt=220V0.022A60s=290.4J
          2҈D֪PTCԪС30r(sh)RrС=2K=2000
          PTCԪ늹ʞ飺
          3ٮ(dng)ض_(d)60r(sh)PTCԪl(f)ṦʵɢṦضȱֲ׃
          ĈD׿Կ(dng)Ĝضȸ60r(sh)PTCԪRrɹʽ֪PTCԪl(f)Ṧ׃Сl(f)ṦСɢṦض½
          ڏĈD׿Կ(dng)Ĝضȵ60r(sh)PTCԪRrpСɹʽ֪PTCԪl(f)Ṧ׃l(f)ṦʴɢṦض˱رеˮԱ60ң
          Դ𰸞飺10.022   290.4  224.2
          3(j)P=U2/Rİl(f)ṦʜpСl(f)ṦСɢṦ
          С60r(sh)ֵͬl(f)Ṧl(f)ṦʴɢṦ
          c(din)u(png)1}ˌW(xu)(du)Wķɵđ(yng)늹Ӌ(j)͵ĹʵӋ(j)㣬P(gun)Inj(du)ʽ͹ʽ׃ε͑(yng)Ӌ(j)^(gu)ҪעλēQ㣮
          2}W(xu)(du)D⼰(yng)D󷨞г÷(yng)W(xu)(hu)쾚(yng)ãڑ(yng)c(din)գوD(bio)ĺxڈD׃۽ؾصxбʵx
          (x)(c)ϵд
          P(gun)(x)}

          Ŀ (li)ԴԔ x}

          Dʾijúй©zy(c)bõĺ(jin)·Դ늉ֲ׃R0鶨ֵRwֵSúȵpС]_(ki)P(gun)f(shu)_
          Aúr(sh)ʾ(sh)׃С
          Búr(sh)늉ʾ(sh)׃С
          CúȜpСr(sh)·늹ʌ׃С
          DúȜpСr(sh)늉cʾ(sh)ıֵ׃

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ Ӌ(j)}

          Dһ_(ti)õ늟ˮC(j)±Ɣ(sh)(j)D·ԭDSǜؿ_(ki)P(gun)R1ǶֵR2Ǽӟ(dng)S]ϕr(sh)ˮC(j)̎ڼӟB(ti)(dng)S_(ki)r(sh)ˮC(j)̎ڱؠB(ti)

          1ڼӟB(ti)£ˮC(j)r(sh)·еǶ
          2ˮC(j)r(sh)ˮеˮ20ӟᵽ90Õr(sh)14minˮıȟݞ4.2103Jkg棩.˼ӟ^(gu):ˮյğˮC(j)ļӟЧ
          3R1ֵعָ(g)·ĵĹʣ

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ Ӌ(j)}

          ڈDʾ·Դ늉6ұֲ׃(dng)׃R1(bio)С100 2A֘ӡ]_(ki)P(gun)SA1A2ʾ(sh)քeDʾ

          R2ֵ
          ͨ10ͨ^(gu)R2ĹW2
          Ƅ(dng)(dng)׃R1ĻƬPʹɂ(g)ָƫx̶ȵĽǶǡͬ˕r(sh)׃R1ĵĹP1

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ }

          ijů֌IJָ(bio)ұ(dng)(ni)ˮԭ(li)ض20r(sh)~늉¼ӟָʾϨ,^(gu)ˮյğ     J;ӟ^(gu)Ҫĕr(sh)g210s, Ӌ(j)pʧtӟ           ˮıȟݞ4.2103Jkg棩
          ~늉
          ӟ
          (ni)ˮ
          Ԅ(dng)늜ض
          220V
           
          1L
          70

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ Ӌ(j)}

          СIһ(g)΢t (tng)˂v΢t(du)ʳӟHӟr(sh)g߀߂ӟЧʸߵc(din)(yn)CһNf(shu)QֱܱضӋ(j)Č(sh)Hy(c)һ΢tڸ߻ˮr(sh)Ч
          鿴˼΢tע~ݔ빦ʞ1 000 Wֲ鿴ҵĆܱע3200 imp / kWh(ʾÿ1 kWhԓܱİl(f)OWq3 200)֮P(gun)]мwe1LضȞ20Cˮ΢tø߻_(ki)ʼӟͬr(sh)犱Ӌ(j)r(sh)ӛܱİl(f)OWqĴΔ(sh)vr(sh)4 minܱİl(f)OWq288˕r(sh)ȡy(c)ˮĜضȞ76Ct
          14΢tĵǶ
          2΢tˮr(sh)ЧǶһλС(sh)

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          Ŀ (li)ԴԔ Ӌ(j)}

          Dʾ·Դ늉6VR2=30֪ͨ^(gu)R1Sɶ늉׃P(gun)ϵDʾ

          1R1ֵ
          2(dng)S1S2S3]ϕr(sh)ʾ(sh)
          3(dng)S1]S2S3_(ki)r(sh)ʾ(sh)0.15A˕r(sh)R3ĵĹ

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          Ŀ (li)ԴԔ x}

          DʾğzһNb޹ڲͿză(ni)2ֻͬPTCضϵ(sh)ӟԪ乤·Dʾۄ(dng)C(j)ʹwzlǰD“(lin)(dng)_(ki)P(gun)Sͬr(sh)SABðzҺ_(ki)C(j)“(lin)(dng)_(ki)P(gun)Sͬr(sh)SBCֻPTCԪSضȵ׃DʾP(gun)PTCԪĹrf(shu)_ǣ    
          Aۄ(dng)C(j)ֻPTCԪ“(lin)·
          B_(ki)C(j)ֻһֻPTCԪ·
          C_(ki)C(j)(dng)ضȞ80r(sh)·ĵ늹ʞ55W
          Dۄ(dng)C(j)(dng)ضȞ180r(sh)1min·ĵܞ4800J

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          Ŀ (li)ԴԔ Ӌ(j)}

          Dɡ·͡·ɲֽMɵĹ··ɹRſ_(ki)P(gun)LֵR0ԴU1ȽM֪RֵSڹϵĹ⏊(qing)Eʾď(qing)λcd֮g׃P(gun)ϵDʾ(dng)Ȧеڻ20mAr(sh)ſ_(ki)P(gun)ĴԏƬ໥ϡ·ɹԴU2U2 = 20Vl(f)R1R1= 5R2R2 =15M(wn)

          1(dng)·еС20mAr(sh)·еR1ɶ˵늉     VĵĹ     W
          2(dng)·е30mAr(sh)·R1ɶ˵늉       V
          3·еľȦֵRL= 1R0= 140U1=3VôڹϵĹ⏊(qing)ʲô(ni)r(sh)ſ_(ki)P(gun)ĴԏƬ໥@(wn)Ҫн^(gu)̣

          鿴𰸺ͽ>>

          ͬ(x)(c)