做电学实验时需要测量约0.5A电流,但是实验室内当只有一个量程为0.3A电流表.若手边有12V学生电源、0~50欧滑动变阻器、电炉用的电阻丝,以及导线和开关,有什么简单办法可以把电表量程临时近
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/27 21:11:53
xXIo+Mu79 @d+Ɍ 9H-$EY)IQEăJ^7O{H#G @ IW^WU_)e/dj;%~+FX%fs_vIF'6Bje/PgG2ޔ&ka-VXjѺn@PQ._n?eZ+>FoEX92<з%Ulm٥WKԎMhEFҬE)FvF:Y:ݰc`9+ς?WܷhYa[7fE&SZ{V3FN*h,R*C|Roƭ;ɳ$KX]zGV}l%*g(y Q
~lUJǚx/4gXշDZhg6)]dG{鯟ߧ0x6ݷffO/=6p<~G00C{?O/+<[,L}?]/WEqYpxB1G>EռMsjavnM9]
Ux)rs[Ж!jp2oDY^F
{E͉A#Teҗއe%q(m'Hi3uhV4FzNS69ݴNnBu-WvyS(ь;+e\(vֲ=݂*j\Z<baoos",bx~5S
IƭInx6PZ2:7y!JM@9N˻#$m穻k/T<mqֶGL;>Hl.I-vp;u+d *GzIl؋+ W}$H`kXتXJe TeײCRE!ӳ<baxNϲ"%
=[![ (8ΞP;DO;*[37[(G=]9$%tpjs襔<ɝ;,^o/h2gȊ.T(p\CnmlX&AwX4YfnAcQgw7267aC7 <)-K8^oU蠸FXxX^>1
ũDfAjus|ZƾR;zxg˨l>,/ByX=˶0` A-[MV:Ezh|~e!HP3*;B\4
?U_V[
3qdYsҋJI^:Q[u6f9fmniGE
SڣX# '$6xnWL)S;)j0QG
שHٷ86Ĥ"I姊_.Lm&Pq'0YsR+6tBAǫ_:WY
W0jeˇ43q`#8U幂mn~sdž n.
Aec}LS7+叓~*/'GPv8=Õʻ,ե:j ;5&G~BhT9yu4xKFO$_]>/f"h;U,Sb;%