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Q.
Five resistors are connected as shown in the diagram. The equivalent resistance between $A$ and $B$ is
Current Electricity
Solution:
Since the given bridge is balanced, hence there will be no current through $9\, \Omega$ resistance. This resistance has no effect and must be ignored in the calculations.
$R_{A B}=\frac{9 \times 18}{27}=6 \, \Omega$
