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ŷķɡ֪ʶ븴ϰ

Դ:51ߺҽ    :1925    :2013-2-9 9:09:53
ŷķϰ
һѹ
(һ)ѹ
1ѹγɵԭѹʹ·еɵɶƶγ˵Դṩѹװá
2·лóٵ·еԴ·еѹڵ·ͨġ
()ѹĵλ
1ʵλ V õλkV mV V
ϵ1Kv1000V 1V1000 mV 1 mV1000V
2סһЩѹֵ һڸɵ1.5V һ 2V ͥѹ220V ȫѹ36V
()ѹ

2ʱϱ̣ÿÿСѹֵ
3ʹù򣺢ٵѹҪڵ·С
ڵӵѹġ룬ָᷴƫ
۱ѹҪѹ̡

(һ)弰ţ
1壺ʾԵ谭õĴС
2ţR
()λ
1ʵλŷķ涨˵ĵѹ1Vͨĵ1Aεĵ1
2õλǧŷŷ
3㣺1M=1000K 1 K=1000
4˽һЩֵֵͲСݣ˿ĵΪŷʮŷճõİ׳ƣ˿ĵΪŷǧŷʵõͭߣСڰٷ֮ŷΪ㼸ŷѹΪǧŷҡ
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ԭͨı·еĵߵijı衣
ãͨı·еĵ裬𽥸ı·еĵͲֵ·˵ĵѹڱ·
Ƶ䡣
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1̽ѹĹϵ
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2ŷķɵеĵ˵ĵѹȣĵɷȡ
3ѧʽ I=U/R
ġ
1壺õѹ͵ֱ·ijһ˵ĵѹͨĵͿԸŷķĵ裬õѹз
2ԭI=U/R
3·ͼ ͼ
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3裺֣·ܵڸֵ·֮͡
ĸR=R1+R2+R3+Rn
·ص㣺
1֣·ܵڸ֧·е֮͡
ĸ I=I1+I2+I3+In
2ѹ֣·и֧·˵ĵѹȡ
ĸU=U1=U2=U3=Un
3裺֣·ܵĵڸ֧·赹֮͡
ĸ1/R=1/R1+1/R2+1/R3+1/Rn




ٶ:ŷķɡ֪ʶ븴ϰ

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