What is the equivalent resistance between points a and b in the figure

equivalent-resistanc

#1

What is the equivalent resistance between points a and b in the figure.Express your answer using one significant figure.

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Answer:

6,12 and 4 are in parallel. 1/Req=1/6+1/12+1/4 Req=2ohm The 10 ohm resistance is shorted due to conduction wires. Rnet=2+2+3=7ohm