THERE ARE THREE SOUCES OF RESISTANCE IN PARALLEL CIRCIUT. TWO OF THEM ARE RATED AT 20 OLMS, THE OTHER AT 10 OLMS. What is the answer?
20 ohms
12 ohms
8 ohms
5 ohms
2007-08-05 02:09:16 · 5 answers · asked by SAMMY 1 in Science & Mathematics ➔ Physics
5
1/(R_total)=
1/(R_1)+1/(R_2)+1/(R_3)
1/(R_total)=
1/20+1/20+1/10=4/20=1/5
R_total=5 ohms
2007-08-05 02:14:44 · answer #1 · answered by MeisəM 4 · 0⤊ 0⤋
5
2007-08-05 10:11:04 · answer #2 · answered by Shastri ji 2 · 0⤊ 0⤋
The two 20 ohm equal 10 ohm which in paralel with 10 ohm gives a total of 5 ohm
2007-08-05 09:14:07 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋
since they're in parrallel....
1/20 +1/20 +1/10= 1/?
do the math ? should be 5 ohms
2007-08-08 15:13:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
GREETINGS....
the CORRECT ANSWER is ..." 5 OHMS "
becuase:
1/R=(1/20)+(1/20)+(1/10)
1/R= 1/5
THERFORE R = 5 OHMS
2007-08-05 09:17:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋