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I<br />

A<br />

r ) =<br />

1 1<br />

r ) =<br />

2 2<br />

r ) =<br />

3 3<br />

R<br />

Gambar 8.15<br />

Tiga sumber tegangan disusun<br />

paralel.<br />

Tantangan<br />

untuk Anda<br />

Empat buah hambatan masingmasing<br />

besarnya 1 ohm<br />

dihubungkan seperti pada gambar<br />

berikut.<br />

Hitunglah hambatan total R antara<br />

titik A dan titik B.<br />

184 Mudah dan Aktif Belajar Fisika untuk Kelas X<br />

B<br />

E,r&")ik"-%!"#$"%&'()C6%P4")%"r41%I%2"-0%$,-0"#ir%8"*"%r"-0k"i"-<br />

"*"#"&T<br />

( ) tot<br />

I =<br />

* O O O +<br />

R + , + + -<br />

r r r<br />

. O S Q /<br />

@MNS`C<br />

4-)4k%n%/4"&%14$/,r%),0"-0"-%*,-0"-%00#%A% ) %*"-%&"$/")"-%*"#"$%r<br />

2"-0% *i1414-% 8"r"#,#% /,r#"k4T<br />

Contoh 8.11<br />

I<br />

)<br />

=<br />

r<br />

R+<br />

n<br />

Ti0"%/4"&%/"),r"i%*i1414-%1,c"r"%1,ri%1,8,r)i%0"$/"r%/,rik4)6<br />

1,5 V ; 0,2 # 1,5 V ; 0,2 #<br />

@MNSMC<br />

%F,)i"8%/"),r"i%$,$i#iki%00#%O=Y%b%*"-%&"$/")"-%*"#"$%R=S # 6%Vik"%k,)i0"%/4"&%/"),r"i<br />

),r1,/4)%*i&4/4-0k"-%*,-0"-%1,/4"&%&"$/")"-%R A%X=X # =%),-)4k"-%k4")%"r41%2"-0<br />

$,-0"#ir%$,#"#4i%&"$/")"-%R6<br />

+","$-<br />

Dik,)"&4iT<br />

) A%O=Y%b<br />

r A%R=S#<br />

n A%Q<br />

R A%X=X#<br />

J-)4k%$,-,-)4k"-%k4")%"r41%2"-0%$,-0"#ir=%*i04-"k"-%Q/%8"#""7&H'R*AJ<br />

I = n)<br />

nr + R<br />

1,5 V ; 0,2 #<br />

R = 4,4 #<br />

@QC@O=YbC<br />

A%<br />

Q@R=S )+ 4,4<br />

%%A%R=a%?<br />

V"*i=%k4")%"r41%2"-0%$,-0"#ir%R=a%?6<br />

Contoh 8.12<br />

D4"%/4"&%/"),r"i%*i1414-%1,c"r"%8"r"#,#%1,8,r)i%8"*"%0"$/"r%/,rik4)6<br />

I<br />

I 1<br />

I 2<br />

r ) =<br />

1 1<br />

r ) =<br />

2 #<br />

2 2

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