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        1. Ӣҽ̾W(wng) > > }ĿԔ

          }ĿijƼСMO(sh)Ӌ(j)Dʾ܇(ch)D(zhun)·ģԭDͨ(yng)ָʾԓָʾ(hu)l(f)⣩΢l(f)⣩Wq·Դ늉12V׃ָʾҎ(gu)顰12V 6WR0鶨ֵD(zhun)D(zhun)ָʾΪ(d)Wqr(sh)늉ɶˌ(sh)H늉Sr(sh)g׃Ҏ(gu)DʾO(sh)ָʾ費׃늴FȦFֵӋ(j)
          ָʾ裻
          D(zhun)_(ki)P(gun)Sc|c(din)3͡4|r(sh)ָʾl(f)B(ti)ͨ^(gu)F
          D(zhun)_(ki)P(gun)Sc|c(din)2͡3|r(sh)ָʾ΢l(f)B(ti)µČ(sh)H늹ʣ
          D(zhun)_(ki)P(gun)Sc|c(din)4͡5|r(sh)ָʾWq1minĵܣ

          𰸡⣺P= ָʾ裺
          RL= = =24
          ·D֪D(zhun)_(ki)P(gun)34r(sh)D(zhun)D(zhun)ָʾͬr(sh)
          P=UIָ֪ʾ̎l(f)r(sh)ͨ^(gu)IL= = =0.5A
          tͨ^(gu)FI=2IL=20.5A=1A
          D(zhun)_(ki)P(gun)Sc|c(din)2͡3|r(sh)ɈDҿ֪(dng)ָʾ΢l(f)r(sh)R0ɶ˵늉U0=9.6V
          “(lin)·п늉ڸ늉ָ֮ʾɶ˵늉
          UL(sh)=UU0=12V9.6V=2.4V
          tָʾČ(sh)Hʣ
          PL(sh)= = =0.24W
          D(zhun)_(ki)P(gun)Sc|c(din)4͡5|r(sh)ɈDҿ֪湤ڞ0.3sһ(g)ڃ(ni)l(f)r(sh)g0.2s΢l(f)r(sh)g0.1s
          tָʾWq1min
          l(f)ĕr(sh)gt1= 0.2s=40s΢l(f)ĕr(sh)gt2=tt1=60s40s=20s
          P= ɵl(f)ĵܣ
          W1=PLt1=6W40s=240J
          ΢l(f)r(sh)ĵܣ
          W2=PL(sh)t2=0.24W20s=4.8J
          ܣ
          W=W1+W2=240J+4.8J=244.8J
          𣺢ָʾ24D(zhun)_(ki)P(gun)Sc|c(din)3͡4|r(sh)ָʾl(f)B(ti)ͨ^(gu)F1AD(zhun)_(ki)P(gun)Sc|c(din)2͡3|r(sh)ָʾ΢l(f)B(ti)µČ(sh)H늹ʞ0.24WD(zhun)_(ki)P(gun)Sc|c(din)4͡5|r(sh)ָʾWq1minĵܞ244.8J
          ָ֪ʾ~늉~(j)P= ָʾ·D֪D(zhun)_(ki)P(gun)Sc|c(din)3͡4|r(sh)D(zhun)D(zhun)ָʾͬr(sh)ָʾ̎l(f)B(ti)P=UIͲ“(lin)·c(din)ͨ^(gu)FD(zhun)_(ki)P(gun)Sc|c(din)2͡3|r(sh)ɈDҿ֪R0ɶ˵늉(j)“(lin)·늉c(din)ָʾɶ˵늉(j)P= ָʾ΢l(f)B(ti)µČ(sh)H늹ʣD(zhun)_(ki)P(gun)Sc|c(din)4͡5|r(sh)ɈDҿ֪湤ںһ(g)ڃ(ni)r(sh)g(j)D(zhun)ָʾWq湤1min(ni)l(f)ĕr(sh)gM(jn)һ΢l(f)ĕr(sh)g(j)P= l(f)ĵܺ΢l(f)r(sh)ĵܣ֮ͼ鹲ܣ
          }·BӵД늹ʹʽ“(lin)·c(din)Wķ늹ʽđ(yng)P(gun)IǏĈDеóָʾĕr(sh)g΢l(f)r(sh)ĕr(sh)g
          c(din)}P(gun)IWķɼ䑪(yng)õP(gun)֪R(sh)՚Wķɵđ(yng)ã ͬһ(g)ֵ׃c늉o(w)P(gun) @(g)ɶ˵늉r(sh)ͨ^(gu)Ҳ󣮣R=U/I (dng)늉׃r(sh)Խ󣬄tͨ^(gu)ԽI=U/R (dng)һr(sh)Խtɶ˵늉Խ󣮣U=IRԼ(du)늹Ӌ(j)˽늹Ӌ(j)㹫ʽW=UItʽІλW(J)U(V)I(A)t룩

          (x)(c)ϵд
          P(gun)(x)}

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