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        1. Ӣҽ̾W(wng) > > }ĿԔ

          }ĿW(xu)Ƽ(chung)СM÷yСݵԴ늉3VyСݵ~늉2.5V

          1ՈùP挧(do)ɈDЌ(sh)·BҪ

          ƬPƄӕrʾ(sh)׃

          Bܽ

          _______

          2z·o`]_P(gun)ݲ늉ʾ(sh)ʾ(sh)(do)@һF(xin)ԭ_____

          A늉· B늉· C׃· DСݔ·

          3ų]_P(gun)(dng)׃ĻƬPƵijһλÕr늉ʾ(sh)DʾҪyСl(f)r裬(yng)׃ĻƬ_____Ƅӣx󡱻ҡ

          4ͨ^Ƅӻ׃ĻƬPӛ˶M(sh)(j)DʾIUDɈD֪Сl(f)r_____

          𰸡 D 12.5

          1Դ늉һr׃Д׃׃ДzLȵ׃ДĽӾ
          2·φ}һǶ··ȏʾ(sh)׃Д·ǔ·߀Ƕ·Ȼͨ^늉ДϾwλ
          3x늉ʾ(sh)Ҫʹl(f)⣬늉ʾ(sh)Ҫ׃Ȼ(j)“(lin)·֓(dn)늉ãԽ֓(dn)늉ԽД
          4ĈDxСݵ~늉~Сr

          1ƄӻƬʾ(sh)׃СԴ늉һr·Ŀ׃׃׃󣬽ӾҪ˵AӾD

          2]_P(gun)ݲʾ(sh)f·ǔ·늉ʾ(sh)f늟·xD

          3늉x03Vÿһ1VÿһС0.1V늉x(sh)2.1VСݵ~늉2.5VҪʹСl(f)⣬늉ʾ(sh)Ҫ׃׃ɶ˵늉ҪpС׃ҪpСԻ׃ĻƬ󻬄ӡ

          4ɈD֪С늉2.5V0.2A

          

          (x)ϵд
          P(gun)(x)}

          Ŀ Դ

          }ĿͬW(xu)ڏ(f)(x)جF(xin)늌W(xu)(sh)龰l(f)F(xin)ʾ·ɺܶ(sh)Č(sh)xȡ(bio)С2.5V֘ӵС L1M(jn)Ќ(sh)

          (1) ССMM(jn)СоС衱Č(sh)ռӛ䛔(sh)(j)L1l(f)r_____ɋм(x)l(f)F(xin)ССMӛ䛱в֮̎Ոf׵ԭǣ_________

          (sh)̖

          U/V

          I/A

          Rx/

          ƽֵRx/

          1

          1.7

          0.14

          12.1

          12.3

          2

          2.5

          0.20

          12.5

          3

          2.2

          0.18

          12.2

          (2)Сl(f)F(xin)ԓD·ҲM(jn)СоС늹ʡČ(sh)򞣬ڃɌ(sh)жҪ^첢ӛ䛟ݵİl(f)rĿķքeǣ_______________________________________________ɂ(sh)ռC(j)еĹͬc(din)У_____

          (3)ɋСMJ(rn)ԓD߀о늹cP(gun)ϵ

          ٳDЌ(sh)߀(yng)ԓa(b)ǣ_____

          ھwf(sh)ӿ늉׃_____

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾ@ijͬW(xu)yС~ʵČ(sh)bÈD

          (1)Сݵ~늉3. 8 V늉ġ0~15 V̓pģԴ늉6 VՈùP挧(do)(j)ṩČ(sh)Da(b)

          ______

          (2)·zo`]_P(gun)l(f)F(xin)oʾ(sh)늉ʾ(sh)ҟoՓƄӻ׃ĻƬݶ·ֻһ̎t___________

          (3)ųϺҪyСݵ~ʣ(yng){(dio)(ji)׃ʹ늉ʾ(sh)_______V˕rʾ(sh)0. 3 AtСݵ~_____W

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾԴ늉ֲ׃S]Ϻ(dng)ƬPһӕr

          A. L1׃L2׃ʾ(sh)׃

          B. L1׃L2׃ʾ(sh)׃С

          C. L1Ȳ׃L2׃ʾ(sh)׃

          D. L1Ȳ׃L2׃ʾ(sh)׃С

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾСyδ֪RxČ(sh)·Դ늉׃R0ֵ֪Ķֵ(dng)]_P(gun)S1S2rʾ(sh)I1(dng)ֻ]_P(gun)S1rʾ(sh)I2tĂxRxı_(d)ʽ_

          A. B.

          C. D.

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿСͬW(xu)һDʾb]_P(gun)ʹ(do)wabˮƽƄl(f)F(xin)(do)wcdҲS֮\(yn)ڴˌ(sh)

          (1)(sh)bеļײ(yng)õԭ_______________.

          (2)(sh)bеҲcd\(yn)^УnjD(zhun)_________

          (3)b_________(סҡ)֮a(chn)ĬF(xin)c늄әC(j)ĹԭƵ

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿСDʾܱyijƷ늟ˮصČ(sh)HyrСM(jn)еIJ_______^쵽ָܱʾ3min(ni)Wq80Σt늟ˮ،(sh)H_______W(dng)ˮĜض{r@ͨ^_______ķ׃ˮă(ni)ܣDABCԓ늟ˮز^_(dng)ˮعrcBIJ________늰ȫ@_^LIJ________

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾԴ늉㶨׃]_P(gun)󣬻׃ĻƬPbƵijc(din)c^늉ʾ(sh)4V׃?yu)?/span>3Vʾ(sh)0.2A׃?yu)?/span>0.3Aɴ˿֪

          A. Դ늉7V

          B. R1ֵ20

          C. ·ĵСʞ1.2W

          D. ƬPb˕r10(ni)R1a(chn)ğ12J

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿD(a)ʾһעMˮһBˮڣˮУ(dng)һAˮڣ̎ijһ߶ȕrˮԄӏA@NF(xin)F(xin)оγɺF(xin)ėlijСMͬW(xu)θ׃ABԼˮĸ߶(sh)F(xin)D(b)(c)(d)(e)ʾ

          Сl(f)F(xin)D(d)(e)]аl(f)F(xin)óY(ji)ՓעMˮ(dng)ABrl(f)F(xin)С(j)D______ĬF(xin)J(rn)СĽY(ji)Փ`

          С^D(a)(b)(c)A̎ĸ߶õl(f)F(xin)ėlǣעMˮ____

          M(jn)һóֻЈD______ͨ^ˮеˮȫꡣ

          鿴𰸺ͽ>>

          ͬ(x)Դ