The equivalent resistance between $A$ and $B$ of the network shown in figure
A$11 \frac{2\,R}{3}$
B$14\,R$
C$21\,R$
D$\frac{8}{3}\,R$
JEE MAIN 2023, Medium
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D$\frac{8}{3}\,R$
d Wheat stone bridge is in balanced condition.
$\frac{1}{R_{e q}}=\frac{1}{4 R}+\frac{1}{8 R}$
$R_{e q}=\frac{8 R}{3}$
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