小明观察了市场上的测重仪后,设计了如图四个电路(R是定值电阻,R1是滑动变阻器).可以测量人体重的电路是 ( ) 为什么选A而不选C呢?请详细分析A、C的电流走向,以及电压表所测电压的
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/31 23:00:12
xX[O[+(R!,:?ShONIu
nbbtϾ<ͬqT,bϬ֚53>Z*a̲®Z[`Ye}VZ1j&dz,s2roM#RfJKf>waEKҹM#~$d'ZMmC ,p
@ =P+5ը,y
%Vck_+pXtAYD|$E+ER
BK.c%V@-x__gw~S3O`f٣
zh͛/7gBwrj"_:=yN7'{bd$rXx4~py#Hh,p whe8v_Ӱgt
;);2nwrbti玶 \=Sb58h>azɊz=
q<Ғ]ZO{OND'"d]U+T+
3m"evXHO5ȒvrFU/2;ju>t\i m' 4 lRTV~b-ą/nit?&3ӁW-̎eN{Գ+7vvH Mh3GfdevxNxN(3!R@O`1r-Ԇ=
ׅ]s' v%<a.Bw1K[V[7 7b .)PDԶʿ*mQTQ˜|
$iXm8y5-dYtC 85s+ӈC-`^x؉l'-#sy_f,63r|5m7etoG?Ź#0h5Uؕ8tceղ3%ޙCW3v.W)FlA{VQ5Ѯ(C
"Ajk4F`*H g';j$eh+Ή#fdEZj.:ٴ*hlBYjǂeUn4vEjI4_@Mcgv;~;rX!d]oy_̄zdDKm!Yz;lTk:<v9vWZlQLjoKcnul*Ga
%m1*R[^٭E81cZ@@MMvSGxE~Q-cD!TrՋ6^Vml#, ""W{&ۈy 3'):*vAYӇ#~LblNV 5
z`Q8Nqa;N,2PܞJOFs]XG<ڼ1ō%^6=@{@wYÇ葽m|88i(G8:poml;Mm0:Y CyhW)W"8XꌩBut?#:>wqCŁo ()fJminY?XlsO(^
,8p& w`$9/=J@}[6nٻJԘkJt!~am>8+]FT6$="w
oU4)?}#wˮyvބЖV)Fw2-.!|s"tf
lQ/A
Rzi@gsh)=[ΠC1[/ShJǚ Dhh:npz뙼#Fa0o*EXt&$Ĭӷ0=+Np'
bp .z3?cܭaFTͬ}Q`b9~CsRӥtY pkp&zb