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[实用参考]大物实验.doc - 百度文库

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˹ͨŲ û˹ǵŲĵֵ ˹ǵŲʵ(̲ͼ4-11-1)ƽоI=0 ݸ˹ʵУƴĵλRbҪDZ ˹ǵʵУı·ĵΪ·еļƵӰ ʹüʱʹָijһλҲͣİڶֻ谴һ¡·ťָֹ ʹüʱСťɫԲλãʱָɰڶתλָ㡣 ʹüʱָƫת߷Χʱɰѡơťٵ·ʹָָ㡣 ʹüʱ߶ť·ڣҪָƫת򣬾Ҫע߶ťһĽӷ мƵĵ·ƫƽԶʱƵġơťºӦɿԷջơ ƽʱ۵rһrƽƻƫתSΪS=/(r/r) ZG21͵׼ȷȵȼΪ10000.1%1000.5%101%12%0.15%ȡֵ3883.6ʱΪ8 ʹüʱ¡ơťƼ·ָƫתƫתٶȿ죬ӦɿơťԷջټơ ĶָÿֵĹʣÿλλĹʡ СťںɫԲ㴦ʱͨ磬Ҳתλ ʹüʱʹָijһλҲͣİڶֻ谴һ¡·ťָֹ û˹ǵſɾȷ10--10Χĵ衣 ZG21͵׼ȷȵȼΪ10000.1%1000.5%101%12%0.15%ȡֵ883.6ʱΪ5 ˹ǵʵУΪŵIJȱ ɶʼĹʽΪУPΪĶʣRΪѡõĵλĵλ衣 Ķָеλֵͨ ۵һű۶Ͽ·Ųܵƽ״̬ ƽڲȴֵϸ ᶯʱҪСťתɫԲ㴦 ͼΪ򿪹صʾͼЩȷĽӷ ƵĶΪ0.5WʹöλʱR=5483.6ŷķʱͨõΪ0.022A ԪԵо

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ԪķָԪ˵ĵѹ֮ͨĹϵ ΪֱߵԪΪԵԪ عͳƵķȥȷGP֮ǷعϵԼ֮س̶ȡعϵȥҳ֮ĺʵѧʽ鹫ʽ ϵr=1ʾѡõĻع鷽ȫغϡ ΪֱߵԪΪԪ ֵѹȷߵһ㻭һߣӳཻںһ㣬õںϵֵǸöֵܵѹ һʵϳһֱߣõķС˷ ϵǷӳ˱GP֮Թϵг̶ȡ ֵѹҪָʽѹĶࡣ ԵԪԵоһ㶼Dz÷в ܴܵPNIJйء ˿ʩӵѹ˿еģ˿¶ʹݵС ܵķԿɷ֣ԡԺͷԡ в˿СݵķԲõ·ͼ1··еĿɱ为صõǷѹӷ RC·̵̬о RC·УC̶䣬RĴС仯ʱCĵѹ仯Ϊָ仯 ̬ʵУCֵ䣬RֵݳҪʱ䣺䳤 RC·dzŵ磬UUtǰָɱ仯 RC·ڵԴͨͶϿݶʱڣ·һ̬һ̬Ḷ֮́Ϊ̡̬ ̬ʵУ״̬ijŵ粨εķֵܱķźŷֵøߡ ̬ʵУӵRC·Ǵ·Уʾ൱ڵѹ ʾ۲RC̬ʱźǷ ̬ʵ,۲쵽ijŵźŵķźž ̬ʵУźŵĿǣ۲쵽ڵijŹ RC·У̵ݵѹͷŵ̵ݵѹ仯ֱΪָָ½ ʵʱ䳣IJͼ ʲοĵ

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Ϊʱ䳣Ҫ8-10ݵ㣬Ϊ귨 ͼģͼֱΪ״̬ͼٽ籥״̬ͼΪδ״̬ͼ RCΪʱ䳣ʱ䳣һҪIJΨһ̵̬Ŀ ͼRC·ʵеĵݳ粨ΣͼпԿ12 ʾʹ ñʵʾԹ۲⵽źҲҲDzݲź ʾ۲ҵѹźšѵѹźŽʾP룬۲쵽5ҲҪĻóһҲΣӦɨʱ䵵ɨ΢ť ͼʵУGҪصIJΣҲPҪصIJΣҲ ʾGPƵͬɳɼȵҵѹʱϽֳһɵĹ켣ͼ֮ͨΪͼΡ ͼεڹУTIME/DIVӦG-P״̬ ʾʵУܹλͬźţıźŵλ ͬʾԹ۲⵽źǣҲҲDzݲźţ͵ĸֲεź ź뵽ʾ󣬱ʾĻʾлӦͨĻϿźš ΪʾPźʱı仯̣GƫתӾݲѹ ʾõĵѹֵǷֵ ʾʵУʹõIJʽУԶ귨 ʾ۲ҵѹźšѵѹźŽʾP룬ҲܾĻķΧӦͨ˥ťʹҲγĻڡ ʲοĵ

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źŷߺʾӵʱӦðźŷߵĺߺʾߵĺһ𣬰źŷߵĺߺʾߵĹһ ͼƽег񶯺ϳɵĽ ͼεIJУP1˵źűΪGźţP2˵źűΪPźš ʾܲұ仯ĵѹֵ ͸IJ ʵеڹԴ͹ѧԪʹǵ͸ĹغϣʹƽУ̽ѧԪĹ Ƿ۹жϰ͹͸ ͹͸Ϊᄉ͸ʱȽ͹͸һСA͹͸֮밼͸ԿһŴA͸AľΪs͸AľΪs,ø˹ʽ͸Ľࡣ ѧʵȡѧʱϽִѧ ͸ҪIJΪ ͸ĺʰ뾶ȶԹСö,ԺԲʱ͸Գ͸ ͸Ƿɢ͸ʵᆳֻܳա û۵С͸ļȷֲ͹͸Ľࡣ ڲǰʹйѧԪĹѧλͬһֱϣֱҪƽУΪ ⽹ʱľAǴ4 ׼ֱ͸ʵУɵΪʵ ͸ʵУ͸ʵ鲽裺 ͹͸С񲢹̶͹͸ȷλ ͸͹͸֮ Զ͹͸ƶ10cmϵľ벢̶ ڰ͸ֱΪֹ ȷ͸λ ͹͸ʵеĵȸ߹ڣִĸСģ͹͸ӦµڣʵԱŵ ѧʵеͷȾʱרòֽȥ ͸ʵУ۲ı߽жǷ ͸ʵУѧԪȸ߹ڵIJ裺 ȷ͹͸ֲ͹͸ йѧԪԴȻֵȸ߹ ȡ°͸ηù͹͸ʹļ4͹͸ ڹ͹͸Ľ桢ֱڵ ͨǰ͹͸ʹγغϣɵ͸ĸťϱġ ͸͹͸֮䲢ڰ͸Ľ洹ֱڵ ʲοĵ

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