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Homework answers / question archive / What is the equivalent resistance between points a and b in the figure?
What is the equivalent resistance between points a and b in the figure?
30 and 45 are in parallel
30*45/(30+45)=18 ohms
18 and 42 are in series
18+42=60 ohms
60 and 40 ohms are in parallel ,so equivalent resistance
1/Req =1/40 + 1/60
Req=24 ohms
